Browser UI becomes very sluggish on https://js1k.com/2013-spring/demo/1390
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(Core :: Graphics: Canvas2D, defect)
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(Reporter: mayankleoboy1, Unassigned)
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Go to https://js1k.com/2013-spring/demo/1390
Let the demo run. Maybe try clicking on the "reload" button within the demo UI.
8 times out of 10, the demo will start to lag quite a bit. At this stage, interactions with the browser UI become very sluggish - try hovering mouse over the toolbar icons, or clicking on the hamburger menu, or clicking the "+" icon to create a new tab.
(logging enabled) https://share.firefox.dev/3UlX83u / https://share.firefox.dev/3OmDvUU , https://share.firefox.dev/48VuTx0 , https://share.firefox.dev/48Nu9d4 / https://share.firefox.dev/49fYDEf
The slowness only appears 8/10 times, and reloading can sometimes improve the scenario and sometimes worsen the scenario.
Expected Result: No matter what the contents of the browser, the browser UI should never lag. Lag makes for poor user experience.
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Reporter | |
Comment 1•8 months ago
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Reporter | |
Comment 2•8 months ago
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And here is a profile where the demo (and the browser UI) doesnt lag despite me pressing the reload button 2-3 times: https://share.firefox.dev/3HB8QQb
And here, till 3.5s, theere ws no jank. Then I "reload" the page and janks began : https://share.firefox.dev/3Smes5s
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Updated•8 months ago
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Description
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