adding event handler to the <html> element in IE<9 will crash jquery 1.5.2
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| /* | |
| * probably not good practice to attach event handlers to the <html> element but... | |
| */ | |
| //IE < 9 throws operation not supported error just on property existence check (not function invocation) | |
| typeof $('html')[0]; //"unknown" | |
| $('html')[0].removeAttribute //throws operation not supported error | |
| /************************************************/ | |
| //jquery 1.5.2 lines 1503-1516 | |
| // Otherwise, we need to eliminate the expando on the node to avoid | |
| // false lookups in the cache for entries that no longer exist | |
| } else if ( isNode ) { | |
| // IE does not allow us to delete expando properties from nodes, | |
| // nor does it have a removeAttribute function on Document nodes; | |
| // we must handle all of these cases | |
| if ( jQuery.support.deleteExpando ) { | |
| delete elem[ jQuery.expando ]; | |
| } else if ( elem.removeAttribute ) { // <------------ blows up here | |
| elem.removeAttribute( jQuery.expando ); | |
| } else { | |
| elem[ jQuery.expando ] = null; | |
| } | |
| } |
Problems like this:
// try in IE
var div = document.createElement('div');
typeof div.offsetParent // unknown
div.offsetParent // boom!have been address with something like an isHostType method.
Yeah I can only reproduce it sporadically too. Need to do more digging. Thanks for the test case.
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I can't seem to reproduce this. I created a small test case here.