684 unique leaks @ r256419: https://build.webkit.org/builders/Apple-Catalina-Leaks/builds/1953 8332 unique leaks @ r256423: https://build.webkit.org/builders/Apple-Catalina-Leaks/builds/1954 Revisions in the range: https://trac.webkit.org/log/webkit/?action=stop_on_copy&mode=stop_on_copy&rev=256423&stop_rev=256419&limit=100&verbose=on
Maybe related to this? Compress ImmutableStyleProperties by using PackedPtr https://bugs.webkit.org/show_bug.cgi?id=207604 https://trac.webkit.org/changeset/256423/webkit
<rdar://problem/59408041>
*** Bug 207706 has been marked as a duplicate of this bug. ***