After r267502, ignoreTLSErros default changed from true to false. As WTR still relies on the default behavior, this is causing a large number of http tests to fail and making the bots exit early.
I thought it was still true, I'll fix it.
Created attachment 409542 [details] Patch
Committed r267523: <https://trac.webkit.org/changeset/267523>
<rdar://problem/69489931>