[whatwg/fetch] Adjust wildcard handling slightly (#592)

Since `*` is a valid header name and method, only count it as a special value for requests without credentials.

Fixes #548.
You can view, comment on, or merge this pull request online at:

  https://github.com/whatwg/fetch/pull/592

-- Commit Summary --

  * Adjust wildcard handling slightly

-- File Changes --

    M fetch.bs (79)

-- Patch Links --

https://github.com/whatwg/fetch/pull/592.patch
https://github.com/whatwg/fetch/pull/592.diff

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/fetch/pull/592