View difference between Paste ID: mXbSPkeu and h8rCUTuA

 // Test 1: Update manifest.json
 // Replace content_scripts with _content_scripts to see that
 // Changing the manifest file does not update the extension.
 //  (or simply change the version number)
 
 // Test 2: Update contentscript.js
 // For example, replace alert with confirm.
 
 // manifest.json
-    "js": ["script.js"]
+
   "name": "Reload test",
   "version": "1",
   "content_scripts": [{
     "matches": ["<all_urls>"],
-// script.js
+    "js": ["contentscript.js"]
   }],
   "background": {"scripts":["bg.js"]}
 }
 
 // contentscript.js
 alert('Test');
 
 // bg.js
 function reloadOnChange(url, checkIntervalMS) {
     if (!window.__watchedFiles) {
         window.__watchedFiles = {};
     }
 
     (function() {
         var self = arguments.callee;
         var xhr = new XMLHttpRequest();
 
         xhr.onreadystatechange = function() {
             if (xhr.readyState == 4) {
                 if (__watchedFiles[url] &&
                     __watchedFiles[url] != xhr.responseText) {
                     window.location.reload();
                 } else {
                     __watchedFiles[url] = xhr.responseText
                     window.setTimeout(self, checkIntervalMS || 1000);
                 }
             }
         };
-console.log('loaded')
+
-reloadOnChange(chrome.extension.getURL('/manifest.json'));
+
         xhr.send();
     })();
 }
 reloadOnChange(chrome.extension.getURL('/manifest.json'));
 reloadOnChange(chrome.extension.getURL('/contentscript.js'));