appending elements to an object element fails in IE < 9

[TimJRobinson]

I'm getting a strange but in IE 6, 7 & 8 where if you append an element to an <object> tag it will give the error:

SCRIPT87: Invalid argument. 

I've reproduced this bug in jsfiddle here: ​http://jsfiddle.net/gR2E9/

If I append text it appears to work fine, it only breaks if I append an element.

It's breaking on line 5653 of jQuery 1.7.1 for me saying elem is an invalid argument.

I'm running on Windows 7 using IE9 in compatability mode. Though I have also reproduced this bug in IE 8 and IE 7 on windows XP.

[TimJRobinson]

I also recreated adding the element in pure javascript and it works as expected:

​http://jsfiddle.net/timjrobinson/YhytD/1/

[dmethvin]

Thanks for the test cases, it's really strange because when you trace through it with the debugger we're doing the same appendChild operation of the param to an object. I think it may be that the html string with a "<param ..." isn't being created correctly but it's a sufficiently rare corner case that I'll just mark it open for now.

[dmethvin]

Oh I see what's happening. The <param> needs an <object> wrapper to be created correctly: ​http://jsfiddle.net/gR2E9/22/

[dmethvin]

​https://github.com/jquery/jquery/pull/914

[Daniel Galvez]

Fix #11280. IE6-8 need name attribute to parse param. Close gh-914.

Changeset: ef7bce7e5c67f29a7e09ea1b0bb43b429fc9f59b