cmd/trace: traceviewer tool doesn't work in non-chrome browsers #19207
Description
What version of Go are you using (go version)?
go version go1.8
What operating system and processor architecture are you using (go env)?
darwin/amd64
What did you do?
Call go tool trace trace.file as described in https://godoc.org/cmd/trace and open the "View trace" link using Safari (or other non-Chrome) web browser.
What did you expect to see?
Expected to see the Trace viewer.
What did you see instead?
There is a JavaScript error, saying "ReferenceError: Can't find variable: tr" in the console of the browser.
I know that the trace-viewer itself comes from the catapult project, as well as that the project was built specifically for Chrome and/or Android, but I think it would be worth to add a notice to cmd/trace documentation about this fact.