syscall/js: "goroutines are asleep" error only in Node.js #32764
Description
What version of Go are you using (go version)?
$ go version go version go1.12.4 linux/amd64
Does this issue reproduce with the latest release?
Yes
What did you do?
package main
import (
"fmt"
"syscall/js"
)
func main() {
var cb js.Func
cb = js.FuncOf(func(this js.Value, args []js.Value) interface{} {
fmt.Println("cb called")
return nil
})
js.Global().Set("callme", cb)
done := make(chan struct{})
fmt.Println("waiting for callback")
<-done
}I ran this in both browser and Node.js.
What did you expect to see?
I expect in both cases, for the program to wait indefinitely.
What did you see instead?
In works fine in browser:
$#go_js_wasm_exec is set to wasmbrowsertest
$GOOS=js GOARCH=wasm go run foo.go
waiting for callback
^Csignal: interrupt
But fails in Node.js
$PATH=/usr/local/go/misc/wasm:$PATH GOOS=js GOARCH=wasm go run foo.go
waiting for callback
fatal error: all goroutines are asleep - deadlock!
goroutine 1 [chan receive]:
main.main()
/home/agniva/play/go/src/foo.go:24 +0xb
exit status 2
Is this expected ?
My node version is 10.2.1
/cc @neelance
I haven't tried with 1.11 because the function semantics have changed since.