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#8421 closed bug (fixed)

Opened March 02, 2011 11:15AM UTC

Closed March 03, 2011 02:18PM UTC

Last modified March 09, 2012 08:15AM UTC

resolveWith fails on IE8 when called with no "args" argument

Reported by: Martín Soto <> Owned by: jaubourg
Priority: high Milestone: 1.5.2
Component: core Version: 1.5.1
Keywords: Cc:
Blocked by: Blocking:

Deferred's resolveWith method fails on IE8 (with and without IE7 compat mode) when called without its second argument ("args"), e.g.,

d = $.Deferred();

According to the docs, this arguments is optional, so this would be a valid call, and it indeed works as expected on at least Firefox and Chrome. IE, on the other hand, fails with an "Object expected" error.

A very small test case for the problem is available at It affects both jQuery 1.5 and 1.5.1.

I could trace this to the apply call at line 862 of jquery-1.5.1.js:

callbacks.shift().apply( context, args );

When resolveWith is called without the args argument, apply gets called here with an undefined but explicit second argument. This evidently makes IE choke.

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Change History (2)

Changed March 03, 2011 02:03PM UTC by jaubourg comment:1

_comment0: Not just IE, very good catch :)1299161854124346
component: unfiledcore
milestone: 1.next1.5.2
owner: → jaubourg
priority: undecidedhigh
status: newassigned

very good catch :)

Changed March 03, 2011 02:18PM UTC by jaubourg comment:2

resolution: → fixed
status: assignedclosed

Used the wrong format to notify the fix in the commit message.