Bug: T288686 Depends-on: I4afc8c38dc9c51d55b46b766a1417b1266963482 Change-Id: Iac6023bb6edca5c8dddc3bfd362db727b2534946
Rather than test for fetch, limit the code to ES6 browsers. Depends-On: I96a03796628a74ace93579d45a582711400c09c1 Change-Id: I4ca10182491118e61e155f99c713d4cb1b4fc7f0