Make any errors (invalid URLs etc) throw errors in resolution#205

Merged

domenic merged 9 commits intoWICG:masterfrom hiroshige-g:FallbackAndBlockSpec

Feb 7, 2020

+167-16

Commits on Jan 31, 2020

Commits on Feb 3, 2020

Commits on Feb 6, 2020

Further align ref impl and spec
domenic
committed