Sanitize suggested download filename received from web process
Created attachment 394008 [details] Patch
<rdar://problem/59487723>
Found 1 new test failure: fast/dom/HTMLAnchorElement/anchor-file-blob-download-includes-backslash.html
Created attachment 394036 [details] Patch
Committed r258741: <https://trac.webkit.org/changeset/258741> All reviewed patches have been landed. Closing bug and clearing flags on attachment 394036 [details].