Fix supportsImportMaps feature detection on null origins #131
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Looks great, thank you for the fix. Published in 0.10.7. |
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Fixes #127.
In Safari (and Chrome*), import maps feature detection via a
blob:iframe fails on null origins (such asfile:, but I guess it might also fail e.g. in sandboxed iframes) —parent._$s(v)fails with a CORS error.* This of course is not really a problem in Chrome, since they support import maps natively anyway. Interestingly enough, it doesn't fail in Firefox, so it looks like Firefox has more lax null origin restrictions?
This PR proposes to use
srcdocinstead ofsrc="blob:...for the iframe, which seems to work.