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2019-03-26 23:16:23 +03:00 · 2019-03-26 23:16:23 +03:00 · 0873d43d72
commit 0873d43d72
parent 706b1f26b2
62 changed files with 1695 additions and 142 deletions
--- a/2-ui/10-loading/02-script-async-defer/window-onbeforeunload.view/index.html
+++ b/2-ui/10-loading/02-script-async-defer/window-onbeforeunload.view/index.html
@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+</head>
+<body>
+  <script>
+    function setHandler() {
+      window.onbeforeunload = function() {
+        return "There are unsaved changes. Leave now?";
+      };
+    }
+  </script>
+
+  <button onclick="setHandler()">Set window.onbeforeunload</button>
+
+  <a href="http://example.com">Leave for EXAMPLE.COM</a>
+</body>
+</html>