Merge pull request #3 from kynetiv/permission

Add permission and prevent default event
kynetiv · Mar 14, 2022 · ca1aac0 · ca1aac0
2 parents 3947d2d + c8da90c
commit ca1aac0
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/manifest.json b/manifest.json
@@ -5,6 +5,9 @@
   "author": "kynetiv",
   "description": "Guards browser from navigation / refresh of the currently inspected page. Activate by visiting devtools 'Refresh Guard' panel tab.",
   "devtools_page": "devtoolsRefreshGuard.html",
+  "permissions": [
+    "activeTab"
+  ],
   "icons": {
     "16": "refresh-guard16.png",
     "32": "refresh-guard32.png",

diff --git a/refreshGuard.js b/refreshGuard.js
@@ -6,8 +6,15 @@ chrome.devtools.panels.create(
         panel.onShown.addListener(function(window){
             let code = `
             (function () {
-                window.onbeforeunload = function(){
-                  return "Leave site?";
+                window.onbeforeunload = function(event){
+                  var e = event || window.event;
+                  // Cancel the event
+                  e.preventDefault();
+                  var confirmText = 'Leave site?';
+                  if (e) {
+                    e.returnValue = confirmText;
+                  }
+                  return confirmText;
                 }
             })()`
             chrome.devtools.inspectedWindow.eval(code)