Zach Fox

Because this issue is a few years old, I'm going to first try to provide definitive answers to the questions raised in the issue, and then close this issue. If...

hi folks :) i'm going through some open MDN issues and this one popped up. my latest understanding of this issue is: 1. this issue is related to [`dom-examples/to-do-notifications`](https://github.com/mdn/dom-examples/tree/main/to-do-notifications) 2....

Thank you for your proposal, @noamr! We'll wait for a browser to implement this before writing any documentation.

Thanks for opening this issue! I think this would be a great first issue for someone interested in contributing to MDN's content to tackle.

> Interesting behavior - thanks for testing! The big thing that has changed is that the viewer now uses `WebGL` as the default renderer, instead of `2D canvas`, but that...

> @zfox23 Are you getting the same results on https://openseadragon.github.io/? Also, how are you testing the FPS? @iangilman: Yes, I see the same results on https://openseadragon.github.io/ when I toggle fullscreen...

> You should be able to pass `drawer: 'canvas'` as an option: https://openseadragon.github.io/docs/OpenSeadragon.html#.Options Okay! This worked, and the WebGL-based performance issues are gone. So - something's up with WebGL +...

Here's a Firefox performance profile I just captured from https://openseadragon.github.io/: [Download Firefox 2024-08-16 21.28 profile.json.gz](https://github.com/user-attachments/files/16642980/Firefox.2024-08-16.21.28.profile.json.gz) You can open this profile at https://profiler.firefox.com/. In the first half of the profile, the...

> If you maximize the window, and have the viewer take the full window (but not actually fullscreen mode), is the performance closer to full-screen or small viewer performance? Just...

> I guess I'll add that another complication is perhaps the performance of the computer running Firefox. Like I said, mine seems to do just fine (on a 4k monitor)....