cmd/pprof: web command works but -web flag does not

[josharian]

$ go tool pprof -web x.test cpu.prof

results in a 404 in my browser.

$ go tool pprof x.test cpu.prof
Entering interactive mode (type "help" for commands)
(pprof) web
(pprof) 

results in an svg displayed in my browser.

[ebfe]

On a side note: "web" seems a misnomer for the current implementation. It uses xdg-open on Linux and at least on some systems xdg-open doesn't launch a browser but gimp to view the svg.

[rsc]

I think the problem is that -web exits (deleting the temp file) before the browser has had a chance to open it.

[gopherbot]

CL https://golang.org/cl/12553 mentions this issue.