Clamping should happen: "If nesting level is greater than 5, and timeout is less than 4, then set timeout to 4."
Bug 1684139 Comment 16 Edit History
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Clamping should happen: "If nesting level is greater than 5, and timeout is less than 4, then set timeout to 4." https://html.spec.whatwg.org/#timer-initialisation-steps This feels like a bug in Chrome.