diff --git a/.eleventy.js b/.eleventy.js
index c4657e6..4a52805 100644
--- a/.eleventy.js
+++ b/.eleventy.js
@@ -201,21 +201,6 @@ module.exports = function (eleventyConfig) {
   });
   eleventyConfig.setLibrary("md", markdownLibrary);
 
-  // Browsersync Overrides
-  eleventyConfig.setBrowserSyncConfig({
-    callbacks: {
-      ready: function (err, browserSync) {
-        browserSync.addMiddleware("*", (req, res) => {
-          // Provides the 404 content without redirect.
-          res.write(fs.readFileSync("_site/404.html"));
-          res.end();
-        });
-      },
-    },
-    ui: false,
-    ghostMode: false,
-  });
-
   // After the build touch any file in the test directory to do a test run.
   eleventyConfig.on("afterBuild", async () => {
     const files = await readdir("test");
diff --git a/_11ty/apply-csp.js b/_11ty/apply-csp.js
index 5759f96..d1bd844 100644
--- a/_11ty/apply-csp.js
+++ b/_11ty/apply-csp.js
@@ -21,7 +21,6 @@
 
 const { JSDOM } = require("jsdom");
 const cspHashGen = require("csp-hash-generator");
-const syncPackage = require("browser-sync/package.json");
 
 /**
  * Substitute the magic `HASHES` string in the CSP with the actual values of the
@@ -29,18 +28,6 @@ const syncPackage = require("browser-sync/package.json");
  * The ACTUAL CSP is configured in `_data/csp.js`.
  */
 
-// Allow the auto-reload script in local dev. Would be good to get rid of this magic
-// string which would break on ungrades of 11ty.
-const AUTO_RELOAD_SCRIPTS = [
-  quote(
-    cspHashGen(
-      "//<![CDATA[\n    document.write(\"<script async src='/browser-sync/browser-sync-client.js?v=" +
-        syncPackage.version +
-        '\'><\\/script>".replace("HOST", location.hostname));\n//]]>'
-    )
-  ),
-];
-
 function quote(str) {
   return `'${str}'`;
 }
@@ -59,9 +46,6 @@ const addCspHash = async (rawContent, outputPath) => {
       element.setAttribute("csp-hash", hash);
       return quote(hash);
     });
-    if (isDevelopmentMode()) {
-      hashes.push.apply(hashes, AUTO_RELOAD_SCRIPTS);
-    }
 
     const csp = dom.window.document.querySelector(
       "meta[http-equiv='Content-Security-Policy']"
@@ -103,7 +87,3 @@ module.exports = {
     eleventyConfig.addTransform("csp", addCspHash);
   },
 };
-
-function isDevelopmentMode() {
-  return /serve|dev/.test(process.argv.join());
-}