LayoutTests/imported/w3c/web-platform-tests/fetch/api/headers/headers-combine-expected.txt

PASS Create headers using same name for different values 
PASS Check delete and has methods when using same name for different values 
PASS Check set methods when called with already used name 
PASS Check append methods when called with already used name 
PASS Iterate combined values 
PASS Iterate combined values in sorted order