Bug 1603090 [wpt PR 20720] - Fetch: remove support for Response's tra…

…iler, a=testonly

Automatic update from web-platform-tests
Fetch: remove support for Response's trailer

See whatwg/fetch#979.
--

wpt-commits: 1db21a0158e71f849e151c4111a804ed15df855e
wpt-pr: 20720

UltraBlame original commit: e48da00946f8f65a57afe14904884a094ff86d60

testing/web-platform/tests/fetch/api/basic/historical.any.js

@@ -0,0 +1,159 @@
+test
+(
+(
+)
+=
+>
+{
+assert_false
+(
+"
+getAll
+"
+in
+new
+Headers
+(
+)
+)
+;
+assert_false
+(
+"
+getAll
+"
+in
+Headers
+.
+prototype
+)
+;
+}
+"
+Headers
+object
+no
+longer
+has
+a
+getAll
+(
+)
+method
+"
+)
+;
+test
+(
+(
+)
+=
+>
+{
+assert_false
+(
+"
+type
+"
+in
+new
+Request
+(
+"
+about
+:
+blank
+"
+)
+)
+;
+assert_false
+(
+"
+type
+"
+in
+Request
+.
+prototype
+)
+;
+}
+"
+'
+type
+'
+getter
+should
+not
+exist
+on
+Request
+objects
+"
+)
+;
+/
+/
+See
+https
+:
+/
+/
+github
+.
+com
+/
+whatwg
+/
+fetch
+/
+pull
+/
+979
+for
+the
+removal
+test
+(
+(
+)
+=
+>
+{
+assert_false
+(
+"
+trailer
+"
+in
+new
+Response
+(
+)
+)
+;
+assert_false
+(
+"
+trailer
+"
+in
+Response
+.
+prototype
+)
+;
+}
+"
+Response
+object
+no
+longer
+has
+a
+trailer
+getter
+"
+)
+;