Bugzilla

1. Ok so, in Dec 1 build, the 500% thing was not yet implemented, and the zoom works fine, no one said anything about builds before the 500% zoom was implemented.

2. I did say "This is most likely added with the implementation of Bug 1681213" that it is likely, not that it is a regressor, and yes I did not search for a regression, as builds before that implementation worked fine.

3. The issue is that the after getting past 200-280 percentage, the viewport will change only once in approximately +20-30 %. 

4. The screencast shows that I actually zoom the wikipedia page with CMD+mouse scroll, and there you can see that the viewport is changing only once in +20-30 %

Gijs, please let me know if you need additional infos about this. Thanks!

1. Ok so, in Dec 1 build, the 500% thing was not yet implemented, and the zoom works fine, no one said anything about builds before the 500% zoom was implemented.

2. I did say "This is most likely added with the implementation of Bug 1681213" that it is likely the culprit, not that it is actually a regressor, as it was just implemented, and yes I did not search for a regression, as builds before that implementation worked fine.

3. The issue is that the after getting past 200-280 percentage, the viewport will change only once in approximately +20-30 %. 

4. The screencast shows that I actually zoom the wikipedia page with CMD+mouse scroll, and there you can see that the viewport is changing only once in +20-30 %

Gijs, please let me know if you need additional infos about this. Thanks!

1. Ok so, in Dec 1 build, the 500% thing was not yet implemented, and the zoom works fine, no one said anything about builds before the 500% zoom was implemented.

2. I did say "This is most likely added with the implementation of Bug 1681213" that it is likely the culprit, not that it is actually a regressor, as it was just implemented with the patch from Bug 1681213, it looked like it could be at fault since it had changes directly in the affected area; 
If you consider that it's something else that might have caused it, I can gladly invest time and double check to confirm the regression range / regressor.

3. The issue is that the after getting past 200-280 percentage, the viewport will change only once in approximately +20-30 %. 

4. The screencast shows that I actually zoom the wikipedia page with CMD+mouse scroll, and there you can see that the viewport is changing only once in +20-30 %

Gijs, please let me know if you need additional infos about this. Thanks!

Ok, so as Botond said in Comment 2, it is happening before the implementation of Bug 1681213. And now that it was implemented, it was easier to notice this issue. I will see then for a regression here, if there is one.

Thanks Gijs!