inital

node_modules/@11ty/eleventy-dev-server/README.md

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+<p align="center"><img src="https://www.11ty.dev/img/logo-github.svg" width="200" height="200" alt="11ty Logo"></p>
+
+# eleventy-dev-server 🕚⚡️🎈🐀
+
+A minimal, modern, generic, hot-reloading local web server to help web developers.
+
+## ➡ [Documentation](https://www.11ty.dev/docs/watch-serve/#eleventy-dev-server)
+
+- Please star [Eleventy on GitHub](https://github.com/11ty/eleventy/)!
+- Follow us on Twitter [@eleven_ty](https://twitter.com/eleven_ty)
+- Support [11ty on Open Collective](https://opencollective.com/11ty)
+- [11ty on npm](https://www.npmjs.com/org/11ty)
+- [11ty on GitHub](https://github.com/11ty)
+
+[![npm Version](https://img.shields.io/npm/v/@11ty/eleventy-dev-server.svg?style=for-the-badge)](https://www.npmjs.com/package/@11ty/eleventy-dev-server)
+
+## Installation
+
+This is bundled with `@11ty/eleventy` (and you do not need to install it separately) in Eleventy v2.0.
+
+## CLI
+
+Eleventy Dev Server now also includes a CLI. The CLI is for **standalone** (non-Eleventy) use only: separate installation is unnecessary if you’re using this server with `@11ty/eleventy`.
+
+```sh
+npm install -g @11ty/eleventy-dev-server
+
+# Alternatively, install locally into your project
+npm install @11ty/eleventy-dev-server
+```
+
+This package requires Node 18 or newer.
+
+### CLI Usage
+
+```sh
+# Serve the current directory
+npx @11ty/eleventy-dev-server
+
+# Serve a different subdirectory (also aliased as --input)
+npx @11ty/eleventy-dev-server --dir=_site
+
+# Disable the `domdiff` feature
+npx @11ty/eleventy-dev-server --domdiff=false
+
+# Full command list in the Help
+npx @11ty/eleventy-dev-server --help
+```
+
+## Tests
+
+```
+npm run test
+```
+
+- We use the [ava JavaScript test runner](https://github.com/avajs/ava) ([Assertions documentation](https://github.com/avajs/ava/blob/master/docs/03-assertions.md))
+
+## Changelog
+
+* `v2.0.0` bumps Node.js minimum to 18.

node_modules/@11ty/eleventy-dev-server/cli.js

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+const pkg = require("./package.json");
+const EleventyDevServer = require("./server.js");
+
+const Logger = {
+  info: function(...args) {
+    console.log( "[11ty/eleventy-dev-server]", ...args );
+  },
+  error: function(...args) {
+    console.error( "[11ty/eleventy-dev-server]", ...args );
+  },
+  fatal: function(...args) {
+    Logger.error(...args);
+    process.exitCode = 1;
+  }
+};
+
+Logger.log = Logger.info;
+
+class Cli {
+  static getVersion() {
+    return pkg.version;
+  }
+
+  static getHelp() {
+    return `Usage:
+
+       eleventy-dev-server
+       eleventy-dev-server --dir=_site
+       eleventy-dev-server --port=3000
+
+Arguments:
+
+     --version
+
+     --dir=.
+       Directory to serve (default: \`.\`)
+
+     --input (alias for --dir)
+
+     --port=8080
+       Run the web server on this port (default: \`8080\`)
+       Will autoincrement if already in use.
+
+     --domdiff          (enabled, default)
+     --domdiff=false    (disabled)
+       Apply HTML changes without a full page reload.
+
+     --help`;
+  }
+
+  static getDefaultOptions() {
+    return {
+      port: "8080",
+      input: ".",
+      domDiff: true,
+    }
+  }
+
+  async serve(options = {}) {
+    this.options = Object.assign(Cli.getDefaultOptions(), options);
+
+    this.server = EleventyDevServer.getServer("eleventy-dev-server-cli", this.options.input, {
+      // TODO allow server configuration extensions
+      showVersion: true,
+      logger: Logger,
+      domDiff: this.options.domDiff,
+
+      // CLI watches all files in the folder by default
+      // this is different from Eleventy usage!
+      watch: [ this.options.input ],
+    });
+
+    this.server.serve(this.options.port);
+
+    // TODO? send any errors here to the server too
+    // with server.sendError({ error });
+  }
+
+  close() {
+    if(this.server) {
+      return this.server.close();
+    }
+  }
+}
+
+module.exports = {
+  Logger,
+  Cli
+}

node_modules/@11ty/eleventy-dev-server/client/reload-client.js

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+class Util {
+  static pad(num, digits = 2) {
+    let zeroes = new Array(digits + 1).join(0);
+    return `${zeroes}${num}`.slice(-1 * digits);
+  }
+
+  static log(message) {
+    Util.output("log", message);
+  }
+  static error(message, error) {
+    Util.output("error", message, error);
+  }
+  static output(type, ...messages) {
+    let now = new Date();
+    let date = `${Util.pad(now.getUTCHours())}:${Util.pad(
+      now.getUTCMinutes()
+    )}:${Util.pad(now.getUTCSeconds())}.${Util.pad(
+      now.getUTCMilliseconds(),
+      3
+    )}`;
+    console[type](`[11ty][${date} UTC]`, ...messages);
+  }
+
+  static capitalize(word) {
+    return word.substr(0, 1).toUpperCase() + word.substr(1);
+  }
+
+  static matchRootAttributes(htmlContent) {
+    // Workaround for morphdom bug with attributes on <html> https://github.com/11ty/eleventy-dev-server/issues/6
+    // Note also `childrenOnly: true` above
+    const parser = new DOMParser();
+    let parsed = parser.parseFromString(htmlContent, "text/html");
+    let parsedDoc = parsed.documentElement;
+    let newAttrs = parsedDoc.getAttributeNames();
+
+    let docEl = document.documentElement;
+    // Remove old
+    let removedAttrs = docEl.getAttributeNames().filter(name => !newAttrs.includes(name));
+    for(let attr of removedAttrs) {
+      docEl.removeAttribute(attr);
+    }
+
+    // Add new
+    for(let attr of newAttrs) {
+      docEl.setAttribute(attr, parsedDoc.getAttribute(attr));
+    }
+  }
+
+  static isEleventyLinkNodeMatch(from, to) {
+    // Issue #18 https://github.com/11ty/eleventy-dev-server/issues/18
+    // Don’t update a <link> if the _11ty searchParam is the only thing that’s different
+    if(from.tagName !== "LINK" || to.tagName !== "LINK") {
+      return false;
+    }
+
+    let oldWithoutHref = from.cloneNode();
+    let newWithoutHref = to.cloneNode();
+
+    oldWithoutHref.removeAttribute("href");
+    newWithoutHref.removeAttribute("href");
+
+    // if all other attributes besides href match
+    if(!oldWithoutHref.isEqualNode(newWithoutHref)) {
+      return false;
+    }
+
+    let oldUrl = new URL(from.href);
+    let newUrl = new URL(to.href);
+
+    // morphdom wants to force href="style.css?_11ty" => href="style.css"
+    let isErasing = oldUrl.searchParams.has("_11ty") && !newUrl.searchParams.has("_11ty");
+    if(!isErasing) {
+      // not a match if _11ty has a new value (not being erased)
+      return false;
+    }
+
+    oldUrl.searchParams.set("_11ty", "");
+    newUrl.searchParams.set("_11ty", "");
+
+    // is a match if erasing and the rest of the href matches too
+    return oldUrl.toString() === newUrl.toString();
+  }
+
+  // https://github.com/patrick-steele-idem/morphdom/issues/178#issuecomment-652562769
+  static runScript(source, target) {
+    let script = document.createElement('script');
+
+    // copy over the attributes
+    for(let attr of [...source.attributes]) {
+      script.setAttribute(attr.nodeName ,attr.nodeValue);
+    }
+
+    script.innerHTML = source.innerHTML;
+    (target || source).replaceWith(script);
+  }
+}
+
+class EleventyReload {
+  constructor() {
+    this.connectionMessageShown = false;
+    this.reconnectEventCallback = this.reconnect.bind(this);
+  }
+
+  init(options = {}) {
+    if (!("WebSocket" in window)) {
+      return;
+    }
+
+    let { protocol, host } = new URL(document.location.href);
+
+    // works with http (ws) and https (wss)
+    let websocketProtocol = protocol.replace("http", "ws");
+
+    let socket = new WebSocket(`${websocketProtocol}//${host}`);
+
+    socket.addEventListener("message", async (event) => {
+      try {
+        let data = JSON.parse(event.data);
+        // Util.log( JSON.stringify(data, null, 2) );
+
+        let { type } = data;
+
+        if (type === "eleventy.reload") {
+          await this.onreload(data);
+        } else if (type === "eleventy.msg") {
+          Util.log(`${data.message}`);
+        } else if (type === "eleventy.error") {
+          // Log Eleventy build errors
+          // Extra parsing for Node Error objects
+          let e = JSON.parse(data.error);
+          Util.error(`Build error: ${e.message}`, e);
+        } else if (type === "eleventy.status") {
+          // Full page reload on initial reconnect
+          if (data.status === "connected" && options.mode === "reconnect") {
+            window.location.reload();
+          }
+
+          if(data.status === "connected") {
+            // With multiple windows, only show one connection message
+            if(!this.isConnected) {
+              Util.log(Util.capitalize(data.status));
+            }
+
+            this.connectionMessageShown = true;
+          } else {
+            if(data.status === "disconnected") {
+              this.addReconnectListeners();
+            }
+
+            Util.log(Util.capitalize(data.status));
+          }
+        } else {
+          Util.log("Unknown event type", data);
+        }
+      } catch (e) {
+        Util.error(`Error parsing ${event.data}: ${e.message}`, e);
+      }
+    });
+
+    socket.addEventListener("open", () => {
+      // no reconnection when the connect is already open
+      this.removeReconnectListeners();
+    });
+
+    socket.addEventListener("close", () => {
+      this.connectionMessageShown = false;
+      this.addReconnectListeners();
+    });
+  }
+
+  reconnect() {
+    Util.log( "Reconnecting…" );
+    this.init({ mode: "reconnect" });
+  }
+
+  async onreload({ subtype, files, build }) {
+    if (subtype === "css") {
+      for (let link of document.querySelectorAll(`link[rel="stylesheet"]`)) {
+        if (link.href) {
+          let url = new URL(link.href);
+          url.searchParams.set("_11ty", Date.now());
+          link.href = url.toString();
+        }
+      }
+      Util.log(`CSS updated without page reload.`);
+    } else {
+      let morphed = false;
+
+      try {
+        if((build.templates || []).length > 0) {
+          // Important: using `./` in `./morphdom.js` allows the special `.11ty` folder to be changed upstream
+          const { default: morphdom } = await import(`./morphdom.js`);
+
+          // { url, inputPath, content }
+          for (let template of build.templates || []) {
+            if (template.url === document.location.pathname) {
+              // Importantly, if this does not match but is still relevant (layout/include/etc), a full reload happens below. This could be improved.
+              if ((files || []).includes(template.inputPath)) {
+                // Notable limitation: this won’t re-run script elements or JavaScript page lifecycle events (load/DOMContentLoaded)
+                morphed = true;
+
+                morphdom(document.documentElement, template.content, {
+                  childrenOnly: true,
+                  onBeforeElUpdated: function (fromEl, toEl) {
+                    if (fromEl.nodeName === "SCRIPT" && toEl.nodeName === "SCRIPT") {
+                      if(toEl.innerHTML !== fromEl.innerHTML) {
+                        Util.log(`JavaScript modified, reload initiated.`);
+                        window.location.reload();
+                      }
+
+                      return false;
+                    }
+
+                    // Speed-up trick from morphdom docs
+                    // https://dom.spec.whatwg.org/#concept-node-equals
+                    if (fromEl.isEqualNode(toEl)) {
+                      return false;
+                    }
+
+                    if(Util.isEleventyLinkNodeMatch(fromEl, toEl)) {
+                      return false;
+                    }
+
+                    return true;
+                  },
+                  addChild: function(parent, child) {
+                    // Declarative Shadow DOM https://github.com/11ty/eleventy-dev-server/issues/90
+                    if(child.nodeName === "TEMPLATE" && child.hasAttribute("shadowrootmode")) {
+                      let root = parent.shadowRoot;
+                      if(root) {
+                        // remove all shadow root children
+                        while(root.firstChild) {
+                          root.removeChild(root.firstChild);
+                        }
+                      }
+                      for(let newChild of child.content.childNodes) {
+                        root.appendChild(newChild);
+                      }
+                    } else {
+                      parent.appendChild(child);
+                    }
+                  },
+                  onNodeAdded: function (node) {
+                    if (node.nodeName === 'SCRIPT') {
+                      Util.log(`JavaScript added, reload initiated.`);
+                      window.location.reload();
+                    }
+                  },
+                  onElUpdated: function(node) {
+                    // Re-attach custom elements
+                    if(customElements.get(node.tagName.toLowerCase())) {
+                      let placeholder = document.createElement("div");
+                      node.replaceWith(placeholder);
+                      requestAnimationFrame(() => {
+                        placeholder.replaceWith(node);
+                        placeholder = undefined;
+                      });
+                    }
+                  }
+                });
+
+                Util.matchRootAttributes(template.content);
+                Util.log(`HTML delta applied without page reload.`);
+              }
+              break;
+            }
+          }
+        }
+      } catch(e) {
+        Util.error( "Morphdom error", e );
+      }
+
+      if (!morphed) {
+        Util.log(`Page reload initiated.`);
+        window.location.reload();
+      }
+    }
+  }
+
+  addReconnectListeners() {
+    this.removeReconnectListeners();
+
+    window.addEventListener("focus", this.reconnectEventCallback);
+    window.addEventListener("visibilitychange", this.reconnectEventCallback);
+  }
+
+  removeReconnectListeners() {
+    window.removeEventListener("focus", this.reconnectEventCallback);
+    window.removeEventListener("visibilitychange", this.reconnectEventCallback);
+  }
+}
+
+let reloader = new EleventyReload();
+reloader.init();

node_modules/@11ty/eleventy-dev-server/cmd.js

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+#!/usr/bin/env node
+
+const pkg = require("./package.json");
+
+// Node check
+require("please-upgrade-node")(pkg, {
+  message: function (requiredVersion) {
+    return (
+      "eleventy-dev-server requires Node " +
+      requiredVersion +
+      ". You will need to upgrade Node!"
+    );
+  },
+});
+
+const { Logger, Cli } = require("./cli.js");
+
+const debug = require("debug")("Eleventy:DevServer");
+
+try {
+  const defaults = Cli.getDefaultOptions();
+  for(let key in defaults) {
+    if(key.toLowerCase() !== key) {
+      defaults[key.toLowerCase()] = defaults[key];
+      delete defaults[key];
+    }
+  }
+
+  const argv = require("minimist")(process.argv.slice(2), {
+    string: [
+      "dir",
+      "input", // alias for dir
+      "port",
+    ],
+    boolean: [
+      "version",
+      "help",
+      "domdiff",
+    ],
+    default: defaults,
+    unknown: function (unknownArgument) {
+      throw new Error(
+        `We don’t know what '${unknownArgument}' is. Use --help to see the list of supported commands.`
+      );
+    },
+  });
+
+  debug("command: eleventy-dev-server %o", argv);
+
+  process.on("unhandledRejection", (error, promise) => {
+    Logger.fatal("Unhandled rejection in promise:", promise, error);
+  });
+  process.on("uncaughtException", (error) => {
+    Logger.fatal("Uncaught exception:", error);
+  });
+
+  if (argv.version) {
+    console.log(Cli.getVersion());
+  } else if (argv.help) {
+    console.log(Cli.getHelp());
+  } else {
+    let cli = new Cli();
+
+    cli.serve({
+      input: argv.dir || argv.input,
+      port: argv.port,
+      domDiff: argv.domdiff,
+    });
+
+    process.on("SIGINT", async () => {
+      await cli.close();
+      process.exitCode = 0;
+    });
+  }
+} catch (e) {
+  Logger.fatal("Fatal Error:", e)
+}

node_modules/@11ty/eleventy-dev-server/package.json

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+{
+  "name": "@11ty/eleventy-dev-server",
+  "version": "2.0.4",
+  "description": "A minimal, modern, generic, hot-reloading local web server to help web developers.",
+  "main": "server.js",
+  "scripts": {
+    "test": "npx ava --verbose",
+    "sample": "node cmd.js --input=test/stubs"
+  },
+  "license": "MIT",
+  "engines": {
+    "node": ">=18"
+  },
+  "funding": {
+    "type": "opencollective",
+    "url": "https://opencollective.com/11ty"
+  },
+  "bin": {
+    "eleventy-dev-server": "./cmd.js"
+  },
+  "keywords": [
+    "eleventy",
+    "server",
+    "cli"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "author": {
+    "name": "Zach Leatherman",
+    "email": "zachleatherman@gmail.com",
+    "url": "https://zachleat.com/"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/11ty/eleventy-dev-server.git"
+  },
+  "bugs": "https://github.com/11ty/eleventy-dev-server/issues",
+  "homepage": "https://github.com/11ty/eleventy-dev-server/",
+  "dependencies": {
+    "@11ty/eleventy-utils": "^1.0.3",
+    "chokidar": "^3.6.0",
+    "debug": "^4.3.7",
+    "dev-ip": "^1.0.1",
+    "finalhandler": "^1.3.0",
+    "mime": "^3.0.0",
+    "minimist": "^1.2.8",
+    "morphdom": "^2.7.4",
+    "please-upgrade-node": "^3.2.0",
+    "send": "^0.19.0",
+    "ssri": "^11.0.0",
+    "urlpattern-polyfill": "^10.0.0",
+    "ws": "^8.18.0"
+  },
+  "devDependencies": {
+    "ava": "^6.1.3"
+  }
+}

node_modules/@11ty/eleventy-dev-server/server.js

@@ -0,0 +1,950 @@
+const path = require("node:path");
+const fs = require("node:fs");
+
+const finalhandler = require("finalhandler");
+const WebSocket = require("ws");
+const { WebSocketServer } = WebSocket;
+const mime = require("mime");
+const ssri = require("ssri");
+const send = require("send");
+const devip = require("dev-ip");
+const chokidar = require("chokidar");
+const { TemplatePath, isPlainObject } = require("@11ty/eleventy-utils");
+
+const debug = require("debug")("Eleventy:DevServer");
+
+const pkg = require("./package.json");
+const wrapResponse = require("./server/wrapResponse.js");
+
+if (!globalThis.URLPattern) {
+  require("urlpattern-polyfill");
+}
+
+const DEFAULT_OPTIONS = {
+  port: 8080,
+  liveReload: true,     // Enable live reload at all
+  showAllHosts: false,  // IP address based hosts (other than localhost)
+  injectedScriptsFolder: ".11ty", // Change the name of the special folder used for injected scripts
+  portReassignmentRetryCount: 10, // number of times to increment the port if in use
+  https: {},            // `key` and `cert`, required for http/2 and https
+  domDiff: true,        // Use morphdom to apply DOM diffing delta updates to HTML
+  showVersion: false,   // Whether or not to show the server version on the command line.
+  encoding: "utf-8",    // Default file encoding
+  pathPrefix: "/",      // May be overridden by Eleventy, adds a virtual base directory to your project
+  watch: [],            // Globs to pass to separate dev server chokidar for watching
+  aliases: {},          // Aliasing feature
+  indexFileName: "index.html", // Allow custom index file name
+  useCache: false,      // Use a cache for file contents
+  headers: {},          // Set default response headers
+  messageOnStart: ({ hosts, startupTime, version, options }) => {
+    let hostsStr = " started";
+    if(Array.isArray(hosts) && hosts.length > 0) {
+      // TODO what happens when the cert doesn’t cover non-localhost hosts?
+      hostsStr = ` at ${hosts.join(" or ")}`;
+    }
+
+    return `Server${hostsStr}${options.showVersion ? ` (v${version})` : ""}`;
+  },
+
+  onRequest: {},        // Maps URLPatterns to dynamic callback functions that run on a request from a client.
+
+  // Example:
+  // "/foo/:name": function({ url, pattern, patternGroups }) {
+  //   return {
+  //     headers: {
+  //       "Content-Type": "text/html",
+  //     },
+  //     body: `${url} ${JSON.stringify(patternGroups)}`
+  //   }
+  // }
+
+  // Logger (fancier one is injected by Eleventy)
+  logger: {
+    info: console.log,
+    log: console.log,
+    error: console.error,
+  }
+}
+
+class EleventyDevServer {
+  static getServer(...args) {
+    return new EleventyDevServer(...args);
+  }
+
+  constructor(name, dir, options = {}) {
+    debug("Creating new Dev Server instance.")
+    this.name = name;
+    this.normalizeOptions(options);
+
+    this.fileCache = {};
+    // Directory to serve
+    if(!dir) {
+      throw new Error("Missing `dir` to serve.");
+    }
+    this.dir = dir;
+    this.logger = this.options.logger;
+
+    if(this.options.watch.length > 0) {
+      this.getWatcher();
+    }
+  }
+
+  normalizeOptions(options = {}) {
+    this.options = Object.assign({}, DEFAULT_OPTIONS, options);
+
+    // better names for options https://github.com/11ty/eleventy-dev-server/issues/41
+    if(options.folder !== undefined) {
+      this.options.injectedScriptsFolder = options.folder;
+      delete this.options.folder;
+    }
+    if(options.domdiff !== undefined) {
+      this.options.domDiff = options.domdiff;
+      delete this.options.domdiff;
+    }
+    if(options.enabled !== undefined) {
+      this.options.liveReload = options.enabled;
+      delete this.options.enabled;
+    }
+
+    this.options.pathPrefix = this.cleanupPathPrefix(this.options.pathPrefix);
+  }
+
+  get watcher() {
+    if(!this._watcher) {
+      debug("Watching %O", this.options.watch);
+      // TODO if using Eleventy and `watch` option includes output folder (_site) this will trigger two update events!
+      this._watcher = chokidar.watch(this.options.watch, {
+        // TODO allow chokidar configuration extensions (or re-use the ones in Eleventy)
+
+        ignored: ["**/node_modules/**", ".git"],
+        ignoreInitial: true,
+
+        // same values as Eleventy
+        awaitWriteFinish: {
+          stabilityThreshold: 150,
+          pollInterval: 25,
+        },
+      });
+
+      this._watcher.on("change", (path) => {
+        this.logger.log( `File changed: ${path} (skips build)` );
+        this.reloadFiles([path]);
+      });
+
+      this._watcher.on("add", (path) => {
+        this.logger.log( `File added: ${path} (skips build)` );
+        this.reloadFiles([path]);
+      });
+    }
+
+    return this._watcher;
+  }
+
+  getWatcher() {
+    return this.watcher;
+  }
+
+  watchFiles(files) {
+    if(Array.isArray(files)) {
+      files = files.map(entry => TemplatePath.stripLeadingDotSlash(entry));
+
+      debug("Also watching %O", files);
+      this.watcher.add(files);
+    }
+  }
+
+  cleanupPathPrefix(pathPrefix) {
+    if(!pathPrefix || pathPrefix === "/") {
+      return "/";
+    }
+    if(!pathPrefix.startsWith("/")) {
+      pathPrefix = `/${pathPrefix}`
+    }
+    if(!pathPrefix.endsWith("/")) {
+      pathPrefix = `${pathPrefix}/`;
+    }
+    return pathPrefix;
+  }
+
+  // Allowed list of files that can be served from outside `dir`
+  setAliases(aliases) {
+    if(aliases) {
+      this.passthroughAliases = aliases;
+      debug( "Setting aliases (emulated passthrough copy) %O", aliases );
+    }
+  }
+
+  matchPassthroughAlias(url) {
+    let aliases = Object.assign({}, this.options.aliases, this.passthroughAliases);
+    for(let targetUrl in aliases) {
+      if(!targetUrl) {
+        continue;
+      }
+
+      let file = aliases[targetUrl];
+      if(url.startsWith(targetUrl)) {
+        let inputDirectoryPath = file + url.slice(targetUrl.length);
+
+        // e.g. addPassthroughCopy("img/") but <img src="/img/built/IdthKOzqFA-350.png">
+        // generated by the image plugin (written to the output folder)
+        // If they do not exist in the input directory, this will fallback to the output directory.
+        if(fs.existsSync(inputDirectoryPath)) {
+          return inputDirectoryPath;
+        }
+      }
+    }
+    return false;
+  }
+
+  isFileInDirectory(dir, file) {
+    let absoluteDir = TemplatePath.absolutePath(dir);
+    let absoluteFile = TemplatePath.absolutePath(file);
+    return absoluteFile.startsWith(absoluteDir);
+  }
+
+  getOutputDirFilePath(filepath, filename = "") {
+    let computedPath;
+    if(filename === ".html") {
+      // avoid trailing slash for filepath/.html requests
+      let prefix = path.join(this.dir, filepath);
+      if(prefix.endsWith(path.sep)) {
+        prefix = prefix.substring(0, prefix.length - path.sep.length);
+      }
+      computedPath = prefix + filename;
+    } else {
+      computedPath = path.join(this.dir, filepath, filename);
+    }
+
+    computedPath = decodeURIComponent(computedPath);
+
+    if(!filename) { // is a direct URL request (not an implicit .html or index.html add)
+      let alias = this.matchPassthroughAlias(filepath);
+
+      if(alias) {
+        if(!this.isFileInDirectory(path.resolve("."), alias)) {
+          throw new Error("Invalid path");
+        }
+
+        return alias;
+      }
+    }
+
+    // Check that the file is in the output path (error if folks try use `..` in the filepath)
+    if(!this.isFileInDirectory(this.dir, computedPath)) {
+      throw new Error("Invalid path");
+    }
+
+    return computedPath;
+  }
+
+  isOutputFilePathExists(rawPath) {
+    return fs.existsSync(rawPath) && !TemplatePath.isDirectorySync(rawPath);
+  }
+
+  /* Use conventions documented here https://www.zachleat.com/web/trailing-slash/
+   * resource.html exists:
+   *    /resource matches
+   *    /resource/ redirects to /resource
+   * resource/index.html exists:
+   *    /resource redirects to /resource/
+   *    /resource/ matches
+   * both resource.html and resource/index.html exists:
+   *    /resource matches /resource.html
+   *    /resource/ matches /resource/index.html
+   */
+  mapUrlToFilePath(url) {
+    // Note: `localhost` is not important here, any host would work
+    let u = new URL(url, "http://localhost/");
+    url = u.pathname;
+
+    // Remove PathPrefix from start of URL
+    if (this.options.pathPrefix !== "/") {
+      // Requests to root should redirect to new pathPrefix
+      if(url === "/") {
+        return {
+          statusCode: 302,
+          url: this.options.pathPrefix,
+        }
+      }
+
+      // Requests to anything outside of root should fail with 404
+      if (!url.startsWith(this.options.pathPrefix)) {
+        return {
+          statusCode: 404,
+        };
+      }
+
+      url = url.slice(this.options.pathPrefix.length - 1);
+    }
+
+    let rawPath = this.getOutputDirFilePath(url);
+    if (this.isOutputFilePathExists(rawPath)) {
+      return {
+        statusCode: 200,
+        filepath: rawPath,
+      };
+    }
+
+    let indexHtmlPath = this.getOutputDirFilePath(url, this.options.indexFileName);
+    let indexHtmlExists = fs.existsSync(indexHtmlPath);
+
+    let htmlPath = this.getOutputDirFilePath(url, ".html");
+    let htmlExists = fs.existsSync(htmlPath);
+
+    // /resource/ => /resource/index.html
+    if (indexHtmlExists && url.endsWith("/")) {
+      return {
+        statusCode: 200,
+        filepath: indexHtmlPath,
+      };
+    }
+    // /resource => resource.html
+    if (htmlExists && !url.endsWith("/")) {
+      return {
+        statusCode: 200,
+        filepath: htmlPath,
+      };
+    }
+
+    // /resource => redirect to /resource/
+    if (indexHtmlExists && !url.endsWith("/")) {
+      return {
+        statusCode: 301,
+        url: u.pathname + "/",
+      };
+    }
+
+    // /resource/ => redirect to /resource
+    if (htmlExists && url.endsWith("/")) {
+      return {
+        statusCode: 301,
+        url: u.pathname.substring(0, u.pathname.length - 1),
+      };
+    }
+
+    return {
+      statusCode: 404,
+    };
+  }
+
+  _getFileContents(localpath, rootDir) {
+    if(this.options.useCache && this.fileCache[localpath]) {
+      return this.fileCache[localpath];
+    }
+
+    let filepath;
+    let searchLocations = [];
+
+    if(rootDir) {
+      searchLocations.push(TemplatePath.absolutePath(rootDir, localpath));
+    }
+
+    // fallbacks for file:../ installations
+    searchLocations.push(TemplatePath.absolutePath(__dirname, localpath));
+    searchLocations.push(TemplatePath.absolutePath(__dirname, "../../../", localpath));
+
+    for(let loc of searchLocations) {
+      if(fs.existsSync(loc)) {
+        filepath = loc;
+        break;
+      }
+    }
+
+    let contents = fs.readFileSync(filepath, {
+      encoding: this.options.encoding,
+    });
+
+    if(this.options.useCache) {
+      this.fileCache[localpath] = contents;
+    }
+    return contents;
+  }
+
+  augmentContentWithNotifier(content, inlineContents = false, options = {}) {
+    let { integrityHash, scriptContents } = options;
+    if(!scriptContents) {
+      scriptContents = this._getFileContents("./client/reload-client.js");
+    }
+    if(!integrityHash) {
+      integrityHash = ssri.fromData(scriptContents);
+    }
+
+    // This isn’t super necessary because it’s a local file, but it’s included anyway
+    let script = `<script type="module" integrity="${integrityHash}"${inlineContents ? `>${scriptContents}` : ` src="/${this.options.injectedScriptsFolder}/reload-client.js">`}</script>`;
+
+    if (content.includes("</head>")) {
+      return content.replace("</head>", `${script}</head>`);
+    }
+
+    // If the HTML document contains an importmap, insert the module script after the importmap element
+    let importMapRegEx = /<script type=\\?importmap\\?[^>]*>(\n|.)*?<\/script>/gmi;
+    let importMapMatch = content.match(importMapRegEx)?.[0];
+
+    if (importMapMatch) {
+      return content.replace(importMapMatch, `${importMapMatch}${script}`);
+    }
+
+    // <title> is the only *required* element in an HTML document
+    if (content.includes("</title>")) {
+      return content.replace("</title>", `</title>${script}`);
+    }
+
+    // If you’ve reached this section, your HTML is invalid!
+    // We want to be super forgiving here, because folks might be in-progress editing the document!
+    if (content.includes("</body>")) {
+      return content.replace("</body>", `${script}</body>`);
+    }
+    if (content.includes("</html>")) {
+      return content.replace("</html>", `${script}</html>`);
+    }
+    if (content.includes("<!doctype html>")) {
+      return content.replace("<!doctype html>", `<!doctype html>${script}`);
+    }
+
+    // Notably, works without content at all!!
+    return (content || "") + script;
+  }
+
+  getFileContentType(filepath, res) {
+    let contentType = res.getHeader("Content-Type");
+
+    // Content-Type might be already set via middleware
+    if (contentType) {
+      return contentType;
+    }
+
+    let mimeType = mime.getType(filepath);
+    if (!mimeType) {
+      return;
+    }
+
+    contentType = mimeType;
+
+    // We only want to append charset if the header is not already set
+    if (contentType === "text/html") {
+      contentType = `text/html; charset=${this.options.encoding}`;
+    }
+
+    return contentType;
+  }
+
+  renderFile(filepath, res) {
+    let contents = fs.readFileSync(filepath);
+    let contentType = this.getFileContentType(filepath, res);
+
+    for(const [key, value] of Object.entries(this.options.headers)){
+      res.setHeader(key, value);
+    }
+
+    if (!contentType) {
+      return res.end(contents);
+    }
+
+    res.setHeader("Content-Type", contentType);
+
+    if (contentType.startsWith("text/html")) {
+      // the string is important here, wrapResponse expects strings internally for HTML content (for now)
+      return res.end(contents.toString());
+    }
+
+    return res.end(contents);
+  }
+
+  async eleventyDevServerMiddleware(req, res, next) {
+    for(let urlPatternString in this.options.onRequest) {
+      let fn = this.options.onRequest[urlPatternString];
+      let fullPath = this.getServerPath(urlPatternString);
+      let p = new URLPattern({ pathname: fullPath });
+
+      // request url should already include pathprefix.
+      let fullUrl = this.getServerUrlRaw("localhost", req.url);
+      let match = p.exec(fullUrl);
+
+      let u = new URL(fullUrl);
+
+      if(match) {
+        let result = await fn({
+          url: u,
+          pattern: p,
+          patternGroups: match?.pathname?.groups || {},
+        });
+
+        if(!result && result !== "") {
+          continue;
+        }
+
+        if(typeof result === "string") {
+          return res.end(result);
+        }
+
+        if(isPlainObject(result)) {
+          if(typeof result.status === "number") {
+            res.statusCode = result.status;
+          }
+
+          if(isPlainObject(result.headers)) {
+            for(let name in result.headers) {
+              res.setHeader(name, result.headers[name]);
+            }
+          }
+
+          return res.end(result.body || "");
+        }
+
+        throw new Error(`Invalid return type from \`onRequest\` pattern for ${urlPatternString}: expected string or object.`);
+      }
+    }
+
+    if(req.url === `/${this.options.injectedScriptsFolder}/reload-client.js`) {
+      if(this.options.liveReload) {
+        res.setHeader("Content-Type", mime.getType("js"));
+        return res.end(this._getFileContents("./client/reload-client.js"));
+      }
+    } else if(req.url === `/${this.options.injectedScriptsFolder}/morphdom.js`) {
+      if(this.options.domDiff) {
+        res.setHeader("Content-Type", mime.getType("js"));
+        return res.end(this._getFileContents("./node_modules/morphdom/dist/morphdom-esm.js", path.resolve(".")));
+      }
+    }
+
+    next();
+  }
+
+  // This runs at the end of the middleware chain
+  eleventyProjectMiddleware(req, res) {
+    // Known issue with `finalhandler` and HTTP/2:
+    // UnsupportedWarning: Status message is not supported by HTTP/2 (RFC7540 8.1.2.4)
+    // https://github.com/pillarjs/finalhandler/pull/34
+
+    let lastNext = finalhandler(req, res, {
+      onerror: (e) => {
+        if (e.statusCode === 404) {
+          let localPath = TemplatePath.stripLeadingSubPath(
+            e.path,
+            TemplatePath.absolutePath(this.dir)
+          );
+          this.logger.error(
+            `HTTP ${e.statusCode}: Template not found in output directory (${this.dir}): ${localPath}`
+          );
+        } else {
+          this.logger.error(`HTTP ${e.statusCode}: ${e.message}`);
+        }
+      },
+    });
+
+    // middleware (maybe a serverless request) already set a body upstream, skip this part
+    if(!res._shouldForceEnd) {
+      let match = this.mapUrlToFilePath(req.url);
+      debug( req.url, match );
+
+      if (match) {
+        // Content-Range request, probably Safari trying to stream video
+        if (req.headers.range)  {
+          return send(req, match.filepath).pipe(res);
+        }
+
+        if (match.statusCode === 200 && match.filepath) {
+          return this.renderFile(match.filepath, res);
+        }
+
+        // Redirects, usually for trailing slash to .html stuff
+        if (match.url) {
+          res.statusCode = match.statusCode;
+          res.setHeader("Location", match.url);
+          return res.end();
+        }
+
+        let raw404Path = this.getOutputDirFilePath("404.html");
+        if(match.statusCode === 404 && this.isOutputFilePathExists(raw404Path)) {
+          res.statusCode = match.statusCode;
+          res.isCustomErrorPage = true;
+          return this.renderFile(raw404Path, res);
+        }
+      }
+    }
+
+    if(res.body && !res.bodyUsed) {
+      if(res._shouldForceEnd) {
+        res.end();
+      } else {
+        let err = new Error("A response was never written to the stream. Are you missing a server middleware with `res.end()`?");
+        err.statusCode = 500;
+        lastNext(err);
+        return;
+      }
+    }
+
+    lastNext();
+  }
+
+  async onRequestHandler (req, res) {
+    res = wrapResponse(res, content => {
+
+      // check to see if this is a client fetch and not a navigation
+      let isXHR = req.headers["sec-fetch-mode"] && req.headers["sec-fetch-mode"] != "navigate";
+
+      if(this.options.liveReload !== false && !isXHR) {
+        let scriptContents = this._getFileContents("./client/reload-client.js");
+        let integrityHash = ssri.fromData(scriptContents);
+
+        // Bare (not-custom) finalhandler error pages have a Content-Security-Policy `default-src 'none'` that
+        // prevents the client script from executing, so we override it
+        if(res.statusCode !== 200 && !res.isCustomErrorPage) {
+          res.setHeader("Content-Security-Policy", `script-src '${integrityHash}'`);
+        }
+        return this.augmentContentWithNotifier(content, res.statusCode !== 200, {
+          scriptContents,
+          integrityHash
+        });
+      }
+
+      return content;
+    });
+
+    let middlewares = this.options.middleware || [];
+    middlewares = middlewares.slice();
+
+    // TODO because this runs at the very end of the middleware chain,
+    // if we move the static stuff up in the order we could use middleware to modify
+    // the static content in middleware!
+    middlewares.push(this.eleventyProjectMiddleware);
+    middlewares.reverse();
+
+    // Runs very first in the middleware chain
+    middlewares.push(this.eleventyDevServerMiddleware);
+
+    let bound = [];
+    let next;
+
+    for(let ware of middlewares) {
+      let fn;
+      if(next) {
+        fn = ware.bind(this, req, res, next);
+      } else {
+        fn = ware.bind(this, req, res);
+      }
+      bound.push(fn);
+      next = fn;
+    }
+
+    bound.reverse();
+
+    let [first] = bound;
+    await first();
+  }
+
+  getHosts() {
+    let hosts = new Set();
+    if(this.options.showAllHosts) {
+      for(let host of devip()) {
+        hosts.add(this.getServerUrl(host));
+      }
+    }
+    hosts.add(this.getServerUrl("localhost"));
+    return Array.from(hosts);
+  }
+
+  get server() {
+    if (this._server) {
+      return this._server;
+    }
+
+    this.start = Date.now();
+
+    // Check for secure server requirements, otherwise use HTTP
+    let { key, cert } = this.options.https;
+    if(key && cert) {
+      const { createSecureServer } = require("http2");
+
+      let options = {
+        allowHTTP1: true,
+
+        // Credentials
+        key: fs.readFileSync(key),
+        cert: fs.readFileSync(cert),
+      };
+      this._server = createSecureServer(options, this.onRequestHandler.bind(this));
+      this._serverProtocol = "https:";
+    } else {
+      const { createServer } = require("http");
+
+      this._server = createServer(this.onRequestHandler.bind(this));
+      this._serverProtocol = "http:";
+    }
+
+    this.portRetryCount = 0;
+    this._server.on("error", (err) => {
+      if (err.code == "EADDRINUSE") {
+        if (this.portRetryCount < this.options.portReassignmentRetryCount) {
+          this.portRetryCount++;
+          debug(
+            "Server already using port %o, trying the next port %o. Retry number %o of %o",
+            err.port,
+            err.port + 1,
+            this.portRetryCount,
+            this.options.portReassignmentRetryCount
+          );
+          this._serverListen(err.port + 1);
+        } else {
+          throw new Error(
+            `Tried ${this.options.portReassignmentRetryCount} different ports but they were all in use. You can a different starter port using --port on the command line.`
+          );
+        }
+      } else {
+        this._serverErrorHandler(err);
+      }
+    });
+
+    this._server.on("listening", (e) => {
+      this.setupReloadNotifier();
+
+      let logMessageCallback = typeof this.options.messageOnStart === "function" ? this.options.messageOnStart : () => false;
+      let hosts = this.getHosts();
+      let message = logMessageCallback({
+        hosts,
+        localhostUrl: this.getServerUrl("localhost"),
+        options: this.options,
+        version: pkg.version,
+        startupTime: Date.now() - this.start,
+      });
+
+      if(message) {
+        this.logger.info(message);
+      }
+    });
+
+    return this._server;
+  }
+
+  _serverListen(port) {
+    this.server.listen({
+      port,
+    });
+  }
+
+  getServerPath(pathname) {
+    // duplicate slashes
+    if(this.options.pathPrefix.endsWith("/") && pathname.startsWith("/")) {
+      pathname = pathname.slice(1);
+    }
+    return `${this.options.pathPrefix}${pathname}`;
+  }
+
+  getServerUrlRaw(host, pathname = "", isRaw = true) {
+    if(!this._server || !this._serverProtocol) {
+      throw new Error("Access to `serverUrl` property not yet available.");
+    }
+
+    let { port } = this._server.address();
+    return `${this._serverProtocol}//${host}:${port}${isRaw ? pathname : this.getServerPath(pathname)}`;
+  }
+
+  getServerUrl(host, pathname = "") {
+    return this.getServerUrlRaw(host, pathname, false);
+  }
+
+  async getPort() {
+    return new Promise(resolve => {
+      this.server.on("listening", (e) => {
+        let { port } = this._server.address();
+        resolve(port);
+      });
+    })
+  }
+
+  serve(port) {
+    this.getWatcher();
+
+    this._serverListen(port);
+  }
+
+  _serverErrorHandler(err) {
+    if (err.code == "EADDRINUSE") {
+      this.logger.error(`Server error: Port in use ${err.port}`);
+    } else {
+      this.logger.error(`Server error: ${err.message}`);
+    }
+  }
+
+  // Websocket Notifications
+  setupReloadNotifier() {
+    let updateServer = new WebSocketServer({
+      // includes the port
+      server: this.server,
+    });
+
+    updateServer.on("connection", (ws) => {
+      this.sendUpdateNotification({
+        type: "eleventy.status",
+        status: "connected",
+      });
+    });
+
+    updateServer.on("error", (err) => {
+      this._serverErrorHandler(err);
+    });
+
+    this.updateServer = updateServer;
+  }
+
+  // Broadcasts to all open browser windows
+  sendUpdateNotification(obj) {
+    if(!this.updateServer?.clients) {
+      return;
+    }
+
+    for(let client of this.updateServer.clients) {
+      if (client.readyState === WebSocket.OPEN) {
+        client.send(JSON.stringify(obj));
+      }
+    }
+  }
+
+  // Helper for promisifying close methods with callbacks, like http.Server or ws.WebSocketServer.
+  _closeServer(server) {
+    return new Promise((resolve, reject) => {
+      server.close(err => {
+        if (err) {
+          reject(err);
+        }
+        resolve();
+      });
+    });
+  }
+
+  async close() {
+    // Prevent multiple invocations.
+    if (this?._isClosing) {
+      return;
+    }
+    this._isClosing = true;
+
+    // TODO would be awesome to set a delayed redirect when port changed to redirect to new _server_
+    this.sendUpdateNotification({
+      type: "eleventy.status",
+      status: "disconnected",
+    });
+
+    if(this.updateServer) {
+      // Close all existing WS connections.
+      this.updateServer?.clients.forEach(socket => socket.close());
+      await this._closeServer(this.updateServer);
+    }
+
+    if(this._server?.listening) {
+      await this._closeServer(this.server);
+    }
+
+    if(this._watcher) {
+      await this._watcher.close();
+      delete this._watcher;
+    }
+
+    delete this._isClosing;
+  }
+
+  sendError({ error }) {
+    this.sendUpdateNotification({
+      type: "eleventy.error",
+      // Thanks https://stackoverflow.com/questions/18391212/is-it-not-possible-to-stringify-an-error-using-json-stringify
+      error: JSON.stringify(error, Object.getOwnPropertyNames(error)),
+    });
+  }
+
+  // reverse of mapUrlToFilePath
+  // /resource/ <= /resource/index.html
+  // /resource <= resource.html
+  getUrlsFromFilePath(path) {
+    if(this.dir === ".") {
+      path = `/${path}`
+    } else {
+      path = path.slice(this.dir.length);
+    }
+
+    let urls = [];
+    urls.push(path);
+
+    if(path.endsWith(`/${this.options.indexFileName}`)) {
+      urls.push(path.slice(0, -1 * this.options.indexFileName.length));
+    } else if(path.endsWith(".html")) {
+      urls.push(path.slice(0, -1 * ".html".length));
+    }
+
+    return urls;
+  }
+
+  // [{ url, inputPath, content }]
+  getBuildTemplatesFromFilePath(path) {
+    // We can skip this for non-html files, dom-diffing will not apply
+    if(!path.endsWith(".html")) {
+      return [];
+    }
+
+    let urls = this.getUrlsFromFilePath(path);
+    let obj = {
+      inputPath: path,
+      content: fs.readFileSync(path, "utf8"),
+    }
+
+    return urls.map(url => {
+      return Object.assign({ url }, obj);
+    });
+  }
+
+  reloadFiles(files, useDomDiffingForHtml = true) {
+    if(!Array.isArray(files)) {
+      throw new Error("reloadFiles method requires an array of file paths.");
+    }
+
+    let subtype;
+    if(!files.some((entry) => !entry.endsWith(".css"))) {
+      // all css changes
+      subtype = "css";
+    }
+
+    let templates = [];
+    if(useDomDiffingForHtml && this.options.domDiff) {
+      for(let filePath of files) {
+        if(!filePath.endsWith(".html")) {
+          continue;
+        }
+        for(let templateEntry of this.getBuildTemplatesFromFilePath(filePath)) {
+          templates.push(templateEntry);
+        }
+      }
+    }
+
+    this.reload({
+      files,
+      subtype,
+      build: {
+        templates
+      }
+    });
+  }
+
+  reload(event) {
+    let { subtype, files, build } = event;
+    if (build?.templates) {
+      build.templates = build.templates
+        .filter(entry => {
+          if(!this.options.domDiff) {
+            // Don’t include any files if the dom diffing option is disabled
+            return false;
+          }
+
+          // Filter to only include watched templates that were updated
+          return (files || []).includes(entry.inputPath);
+        });
+    }
+
+    this.sendUpdateNotification({
+      type: "eleventy.reload",
+      subtype,
+      files,
+      build,
+    });
+  }
+}
+
+module.exports = EleventyDevServer;

node_modules/@11ty/eleventy-dev-server/server/wrapResponse.js

@@ -0,0 +1,129 @@
+function getContentType(headers) {
+  if(!headers) {
+    return;
+  }
+
+  for(let key in headers) {
+    if(key.toLowerCase() === "content-type") {
+      return headers[key];
+    }
+  }
+}
+
+// Inspired by `resp-modifier` https://github.com/shakyShane/resp-modifier/blob/4a000203c9db630bcfc3b6bb8ea2abc090ae0139/index.js
+function wrapResponse(resp, transformHtml) {
+  resp._wrappedOriginalWrite = resp.write;
+  resp._wrappedOriginalWriteHead = resp.writeHead;
+  resp._wrappedOriginalEnd = resp.end;
+
+  resp._wrappedHeaders = [];
+  resp._wrappedTransformHtml = transformHtml;
+  resp._hasEnded = false;
+  resp._shouldForceEnd = false;
+
+  // Compatibility with web standards Response()
+  Object.defineProperty(resp, "body", {
+    // Returns write cache
+    get: function() {
+      if(typeof this._writeCache === "string") {
+        return this._writeCache;
+      }
+    },
+    // Usage:
+    // res.body = ""; // overwrite existing content
+    // res.body += ""; // append to existing content, can also res.write("") to append
+    set: function(data) {
+      if(typeof data === "string") {
+        this._writeCache = data;
+      }
+    }
+  });
+
+  // Compatibility with web standards Response()
+  Object.defineProperty(resp, "bodyUsed", {
+    get: function() {
+      return this._hasEnded;
+    }
+  })
+
+  // Original signature writeHead(statusCode[, statusMessage][, headers])
+  resp.writeHead = function(statusCode, ...args) {
+    let headers = args[args.length - 1];
+    // statusMessage is a string
+    if(typeof headers !== "string") {
+      this._contentType = getContentType(headers);
+    }
+
+    if((this._contentType || "").startsWith("text/html")) {
+      this._wrappedHeaders.push([statusCode, ...args]);
+    } else {
+      return this._wrappedOriginalWriteHead(statusCode, ...args);
+    }
+    return this;
+  }
+
+  // data can be a String or Buffer
+  resp.write = function(data, ...args) {
+    if(typeof data === "string") {
+      if(!this._writeCache) {
+        this._writeCache = "";
+      }
+
+      // TODO encoding and callback args
+      this._writeCache += data;
+    } else {
+      // Buffers
+      return this._wrappedOriginalWrite(data, ...args);
+    }
+    return this;
+  }
+
+  // data can be a String or Buffer
+  resp.end = function(data, encoding, callback) {
+    resp._hasEnded = true;
+
+    if(typeof this._writeCache === "string" || typeof data === "string") {
+      // Strings
+      if(!this._writeCache) {
+        this._writeCache = "";
+      }
+      if(typeof data === "string") {
+        this._writeCache += data;
+      }
+
+      let result = this._writeCache;
+
+      // Only transform HTML
+      // Note the “setHeader versus writeHead” note on https://nodejs.org/api/http.html#responsewriteheadstatuscode-statusmessage-headers
+      let contentType = this._contentType || getContentType(this.getHeaders());
+      if(contentType && contentType.startsWith("text/html")) {
+        if(this._wrappedTransformHtml && typeof this._wrappedTransformHtml === "function") {
+          result = this._wrappedTransformHtml(result);
+          this.setHeader("Content-Length", Buffer.byteLength(result));
+        }
+      }
+
+      for(let headers of this._wrappedHeaders) {
+        this._wrappedOriginalWriteHead(...headers);
+      }
+
+      this._writeCache = [];
+      this._wrappedOriginalWrite(result, encoding)
+      return this._wrappedOriginalEnd(callback);
+    } else {
+      // Buffers
+      for(let headers of this._wrappedHeaders) {
+        this._wrappedOriginalWriteHead(...headers);
+      }
+
+      if(data) {
+        this._wrappedOriginalWrite(data, encoding);
+      }
+      return this._wrappedOriginalEnd(callback);
+    }
+  }
+
+  return resp;
+}
+
+module.exports = wrapResponse;