Backed out for causing wpt failures on report-frame-ancestors-with-x-frame-options.sub.html
[Backout link](https://hg.mozilla.org/integration/autoland/rev/68682040727dd1e29075ab54a6458a4ed12c4a87)
[Push with failures](https://treeherder.mozilla.org/jobs?repo=autoland&noTelemetry=1&group_state=expanded&resultStatus=testfailed%2Cbusted%2Cexception&revision=731e083b15d27b3cb292f55cfd953319e2370ab4&searchStr=wpt&failure_classification_id=2&selectedTaskRun=atyx7HePSpSiFDb9htE67g.0)
[Failure log](https://treeherder.mozilla.org/logviewer?job_id=460612879&repo=autoland&lineNumber=2227)
Backed out for causing wpt failures on report- frame-ancestors -with-x- frame-options. sub.html
[Backout link](https:/ /hg.mozilla. org/integration /autoland/ rev/68682040727 dd1e29075ab54a6 458a4ed12c4a87)
[Push with failures](https:/ /treeherder. mozilla. org/jobs? repo=autoland& noTelemetry= 1&group_ state=expanded& resultStatus= testfailed% 2Cbusted% 2Cexception& revision= 731e083b15d27b3 cb292f55cfd9533 19e2370ab4& searchStr= wpt&failure_ classification_ id=2&selectedTa skRun=atyx7HePS pSiFDb9htE67g. 0)
[Failure log](https:/ /treeherder. mozilla. org/logviewer? job_id= 460612879& repo=autoland& lineNumber= 2227)