fix: don't return 412 for if-none-match failures #321
Merged
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Closes nodejs/build#4030
Misinterpretation of the docs, precondition failures due to
if-none-match
return a 412 for unsafe http methods (aka those that modify things on the sever-side). For safe methods (GET, HEAD), they return a 304.https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-None-Match