URL: https://aeon.co/essays/how-work-changed-to-make-us-all-passionate-quitters STR: Click on the scrollbar and drag down. The click goes through to the web page and text is selected.
Regression window: https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=3b5eec74e7e5fdd9f3f92df6f68aa981ecb227a8&tochange=bc4c5281f2c23c7d643c6c5580789047c5f0c0ec Rg\egressed by: bc4c5281f2c2 Timothy Nikkel — Bug 1379887. Don't clobber the value of mWillBuildScrollableLayer when we are building a display list for event handling. r=mstange
Should be fixed by backout of bug 1379887.