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css-vr-slow-iframe-scrolling-tests's Introduction

css-vr-slow-iframe-scrolling-tests

Test cases for a scrolling bug in Firefox's CSS-VR experimental builds.

Problem

Scrolling an <iframe> inside a preserve-3d parent makes the <iframe> disappear for 5+ seconds while a repaint occurs. (Notice this happens even though "preserve-3d is NOT inherited.")

Steps to reproduce

  1. Place an <iframe> inside an element that has a style set of transform-style: preserve-3d.
  2. From within the <iframe> call document.document.scrollTop or window.scrollTo.
  3. Notice it takes at least 5 seconds for the <iframe>'s document to be updated (the content actually disappears, but the <iframe> container remains).

Test cases

css-vr-slow-iframe-scrolling-tests's People

Contributors

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