README
Introduction
winalert.js
is small wrapper for window.alert
function, which will raise an winalert
event whenever the client invokes the window.alert
function.
Motivation
The primary motivation for this library, was to overcome the recent anouncement by Google Chrome
where they have effectively stopped support for alert
, confirm
and prompt
dialogs from being displayed in pages loaded in Iframe
.
See Chrome update - Feature: Remove alert(), confirm(), and prompt for cross origin iframes for more information.
event argument winalert
winalertjs
will raise a custom event winalert
on the window object. The winalert
event contains the following properties:
- detail - Contains the actual message passed to the
window.alert
- getMessage() - helper function which will return the actual message passed to the
window.alert
Usage
winalert.js
to your application
Add the <script type="text/javascript" src="path-to-winalertjs-javascript-file.js"></script>
winalert.js
Activate winalertjs.activate();
By default, winalert
events will be raised only for pages which are loaded inside Iframe
only.
If you want to raise the winalert
for pages which are not loaded in Iframe
also.
winalertjs.activate(true);
winalert
event
Register Event handler to listen to // Use the event arguments for 'winalert', to get the message from the original ```window.alert``` invocation
window.addEventListener('winalert', function(earg) {
console.log('winalert event handler ::: ' + earg.getMessage());
});