transparentImageData URI in widget plugin is escaped

[Alfonso Martínez de Lizarrondo]

Currently it's

  var transparentImageData = 'data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw%3D%3D',

but it should be

  var transparentImageData = 'data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==',

(just replace %3D with =)

[Alfonso Martínez de Lizarrondo]

This is strange, I got a mail asking for further information, but I don't see the comment here.

#11225 is an enhancement not directly related to this bug.

The problem is that it's just incorrect, you can test it by trying to decode the image:

window.atob('data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw%3D%3D'.split(',')[1])

vs

window.atob('data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw=='.split(',')[1])

[Piotrek Koszuliński]

I removed my previous comment, because I figured out the answer few secs after posting it :D.

I included patch for this in #11225.