A pattern like "file:///*" always fails to match a file URL.
Created attachment 53882 [details] Proposed change
Comment on attachment 53882 [details] Proposed change r=me
Landed in r57923.
I think this might have introduced new inspector failures on windows? http://build.webkit.org/results/Windows%20Release%20(Tests)/r57923%20(11512)/results.html
No.
The failures are https://bugs.webkit.org/show_bug.cgi?id=36946. However, they're now every time starting between r57921 and r57923.