Abnormally high CPU usage from canvas element?

Reported at https://discord.com/channels/810916927919620096/810931711609143326/1089772242361127033:

<canvas id="background" data-engine="three.js r150" width="807" height="170" style="width: 807px; height: 170px;"></canvas>

Above code is from code4rena main page , someone need to check for issues in this piece of code that caused my computer to freeze by using 100% of its CPU resources every single time .

I do not see similar testing in Chrome myself, but could be something to review or at least keep an ear out for if other similar reports come in to corroborate or provide more clues as to the situations that could cause this (e.g. is it graphics-card dependent?).

首先，使用提供的 canvas 元素在 code4rena 主頁上重現該報告，並比較 Chrome 中的 CPU 使用率與報告條件下的 CPU 使用率。檢查頁面的 three.js r150 canvas 行為，並記錄可靠的重現方式，包括任何顯示卡或環境差異。找出原因，或以足夠的證據縮小報告範圍以便後續追蹤，即表示完成。