[wp-trac] [WordPress Trac] #20532: Cannot use more than one wp.Uploader (Plupload) instance

[WordPress Trac]

#20532: Cannot use more than one wp.Uploader (Plupload) instance
--------------------------+-----------------------------
 Reporter:  kovshenin     |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Upload        |    Version:  3.4
 Severity:  normal        |   Keywords:
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 Hey there!

 Found this bug while playing with the Customizer's Image control and the
 image context. Turns out every control will use the same Plupload
 instance, so the context will be set to the one, specified by the latest
 control rendered on screen. This verifies that no matter how many "new"
 wp.Uploader objects you create, it is still the same one:

 {{{
 var u1 = new wp.Uploader();
 var u2 = new wp.Uploader();

 u1.param( 'some_key', 'first value' );
 u2.param( 'some_key', 'second value' );

 console.log( u1.uploader.settings.multipart_params.some_key ); // logs:
 second value
 console.log( u2.uploader.settings.multipart_params.some_key ); // logs:
 second value
 }}}

 I'm not too confident in my JS skills to handle a patch, sorry.

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Ticket URL: <http://core.trac.wordpress.org/ticket/20532>
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