headers-copy:identity=false
headers-copy:response=a
headers-copy:initializer=b
sync:brand=true
sync:status=207 Multi-Status
sync:headers-stable=true
sync:body-stable=true
sync:content-type=application/json; charset=utf-8
sync:x-perry-repro=sync
sync:cookie=perry_ctx=sync; Path=/; HttpOnly; SameSite=Strict
sync:chunks=2 eof=true body={"label":"sync","complete":true}
async:brand=true
async:status=207 Multi-Status
async:headers-stable=true
async:body-stable=true
async:content-type=application/json; charset=utf-8
async:x-perry-repro=async
async:cookie=perry_ctx=async; Path=/; HttpOnly; SameSite=Strict
async:chunks=2 eof=true body={"label":"async","complete":true}
next:subclass-brand=true
next:marker=next-like
next:brand=true
next:status=207 Multi-Status
next:headers-stable=true
next:body-stable=true
next:content-type=application/json; charset=utf-8
next:x-perry-repro=next
next:cookie=perry_ctx=next; Path=/; HttpOnly; SameSite=Strict
next:chunks=2 eof=true body={"label":"next","complete":true}
error:surfaced=Error: stream-boom
