CSSFontSelector triggers font loads on zero duration timer after style resolution. This can get delayed substantially and all sorts of less important loads may go out first.
Created attachment 415751 [details] wip
Created attachment 415766 [details] patch
Comment on attachment 415766 [details] patch r=me
Committed r270590: <https://trac.webkit.org/changeset/270590> All reviewed patches have been landed. Closing bug and clearing flags on attachment 415766 [details].