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Chrome 77 rendering engine freezes when elements are nested with particular word-wrap / white-space CSS behavior
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This is a simplified document which freezes Chrome 77:

    <style type="text/css">
      .AAA {
        width: 200px;
        white-space: nowrap;
        word-wrap: break-word;
      .BBB {
        white-space: normal;
    <div class="AAA">

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Event Timeline

epriestley triaged this task as Normal priority.Sep 11 2019, 5:53 PM
epriestley created this task.
Pawka added a subscriber: Pawka.Sep 18 2019, 9:57 AM
epriestley lowered the priority of this task from Normal to Wishlist.Sep 24 2019, 6:10 PM

This now appears to be fixed in the release version of Chrome. We can remove the workaround in some future change.