Affects: Firefox, IE6, IE7, Opera, Safari
According to the JavaScript documentation, the onload event can be handled for the body, iframe, img, frameset & object tags. However not all browsers obey this the same.
Supports iframe onload:
Firefox - Yes
IE6, IE7 - Yes
Opera - Yes
Safari - No
Supports object onload:
Firefox - No
IE6, IE7 - No
Opera - No
Safari - Yes
So, take this into consideration if you are planning to use object versus an iframe in your next project.
Known Workarounds: None.
Related Issues: None.