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 主页上复现该报告，并比较 Chrome 中的 CPU 使用率与报告条件下的 CPU 使用率。检查页面的 three.js r150 canvas 行为，并记录可靠的复现步骤，包括任何显卡或环境差异。确定原因，或使用足够的证据缩小报告范围以便后续跟进，即视为完成。