Timeouts with Timers

The program prints no page. It ends with this report:

fatal error: all goroutines are asleep - deadlock!

goroutine 1 [chan receive]:
main.main()

Here the runtime detects the problem, because main and the fetching goroutine are the only goroutines and both are blocked. In a real server, other goroutines keep running, so the runtime reports nothing. The goroutine that waits for the stuck call stays blocked for as long as the process runs.

A program cannot make another service answer, but it can limit how long it waits for the answer. What follows shows how a `select

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