Page becomes empty during zoom

[yurydelendik]

Very intermittent. Possible steps to replicate:

1. Open http://mozilla.github.io/pdf.js/web/viewer.html
2. Go to on page 3 and set zoom 75%
3. Rapidly (within 1 sec) click zoom-out ('-') button two times

Notice one of the pages became empty.

[Snuffleupagus]

That most likely regressed in #3513. Unfortunately this isn't the only issue with that PR, which is why I have already asked @brendandahl to back it out (see comment: #3513 (comment)).

[yurydelendik]

Yep, that's 65fd2c7. Let me back it out

[Snuffleupagus]

@yurydelendik I just ran git bisect, since I can still reproduce this intermittently after you did the back out.
I found that the issue actually seems to be a regression from PR #3461, since it works in the first commit before that one.

I still think that it was really good that you did the back out, since #3513 makes it even worse (w.r.t. presentation mode).

[timvandermeij]

I can confirm the behaviour as described by @yurydelendik on Windows 7 x64 and Firefox 22 (HWA on) using the github.io web viewer.

[yurydelendik]

I cannot replicate it after #3546

[brendandahl]

I still can, will have a fix soon.

[timvandermeij]

Does the github.io viewer have #3546? If so, then I can still replicate it.

Ninja edit: Brendan beat me to it :)