Docs: Fix Safari scrolling to anchors in iframes. #32312
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This solves https://threejs.org/docs/?q=setviewport#Renderer.setViewport (reported by @WestLangley) Needs more work/investigation. |
Mugen87
reviewed
Nov 26, 2025
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| element.scrollIntoView(); | ||
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| }, 100 ); |
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I've tested a bit more and it seems increasing the timeout from 100 to 200 solves the issue on my macMini.
Given that TSL.html is by far the largest document, the HTML parser probably needs more time to make the page ready.
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If we find no other solution, I would like to file a bug at the WebKit bug reporter. I've already searched but found no open bug about scrollIntoView() issues in context of iFrames.
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Related issue: #32302
Description
Fixes an issue where clicking on navigation links in Safari would not scroll to the correct position within the documentation iframe.
The problem occurred because Safari needs additional time to complete iframe layout before scrollIntoView can accurately position the target element. This was only noticeable when navigating via clicks - direct page loads with hash fragments worked fine due to browser's native hash handling.
The fix adds Safari-specific detection and applies a 100ms delay before scrolling, giving Safari time to properly lay out the iframe content.