Bug Tracker

Opened 5 years ago

Closed 4 years ago

#11405 closed bug (fixed)

deferred.notify() invokes progressCallbacks with deferred as context

Reported by: fastfasterfastest Owned by: jaubourg
Priority: high Milestone: 1.9
Component: deferred Version: 1.7.1
Keywords: Cc: jaubourg
Blocked by: Blocking:


http://api.jquery.com/deferred.promise states: "The deferred.promise() method allows an asynchronous function to prevent other code from interfering with the progress or status of its internal request"

However, deferred.notify() invokes progressCallbacks with the deferred as the context, allowing other code to interfere with the progress or status of the internal request of the deferred object.

http://jsfiddle.net/d92Rp/1/ shows how a progress callback is able to reject a deferred.

Arguably, it would make more sense to invoke the progressCallbacks with the promise of the deferred (deferred.promise()) as the context.

The same perhaps/probably applies to deferred.resolve() and deferred.reject(), although in those cases any calls by the done or fail callbacks to resolve or reject would have no effect.

Change History (6)

comment:1 Changed 5 years ago by addyosmani

Cc: jaubourg added
Component: unfiledajax
Priority: undecidedlow

comment:2 Changed 5 years ago by fastfasterfastest

"Component" should probably be "deferred" (as opposed to "ajax")

comment:3 Changed 5 years ago by Rick Waldron

Owner: set to jaubourg
Status: newassigned

comment:4 Changed 5 years ago by jaubourg

Component: ajaxdeferred

comment:5 Changed 4 years ago by gibson042

Milestone: None1.9
Priority: lowhigh

comment:6 Changed 4 years ago by jaubourg

Resolution: fixed
Status: assignedclosed

Deferred: .resolve(), .reject() and .notify() now set the callback context to the promise instance rather than the deferred instance ; .then() has also been amended. Fixes #11405.

Changeset: 23d7cf0488bfeaab51d8f55435cab01f5cf990ca

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