A request carries If-None-Match: "abc" and the selected representation's current entity tag is W/"abc". Do they match?
Yes, because If-None-Match is evaluated with the weak comparison function✓Richtige Antwort
No, because one tag is weak and the other is strong
Yes, but only for GET and HEAD; for other methods the comparison is strong
No, because a client must not send a strong tag against a weakly validated resource
Erklärung
Weak comparison matches on the opaque value regardless of either side carrying the W/ marker, so the condition is false and the server answers 304 for GET or HEAD. If-Match is the field that requires strong comparison, because it is meant to block a write when the data has changed at all.