Sorry, last night HN didn't show me a "reply" button on the thread, so I thought maybe it tapped out at a depth of four? I'm not dodging :) [edit: does HN have account score thresholds at which different features get enabled?]
I don't have security-bugs access, but I explained offline to the OP that "Won't Fix" covers a lot of cases, including "already fixed" / "duplicate", not simply "your bug report is being ignored".
OP also sent me some more information about the BrowserStack setup, and it looks like both the M42 and M43 builds that OP was testing against are nearly a month old and before the fix (merged to M42 late in beta phase, M43's still in dev/canary stage).
I don't have security-bugs access, but I explained offline to the OP that "Won't Fix" covers a lot of cases, including "already fixed" / "duplicate", not simply "your bug report is being ignored".
OP also sent me some more information about the BrowserStack setup, and it looks like both the M42 and M43 builds that OP was testing against are nearly a month old and before the fix (merged to M42 late in beta phase, M43's still in dev/canary stage).