net/http: js-wasm in nodejs HTTP requests fail #69106
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prattmic
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cc @golang/wasm @golang/js @neild |
prattmic
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NeedsInvestigation
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With the following code //go:build js && wasm
package main
import (
"fmt"
"io"
"log"
"net/http"
"runtime"
"syscall/js"
)
func main() {
fmt.Println(runtime.GOOS)
fmt.Println(runtime.GOARCH)
var p = js.Global().Get("process").Get("version").String()
fmt.Println(p)
c := http.Client{
Transport: http.DefaultTransport,
}
resp, err := c.Get("https://httpbin.org/anything")
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}
log.Println(string(body))
}I got Can you share more information about the environment? |
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Can you check if this code is working correctly without using the js/wasm target? |
Yeah, i know its working with go run but not with mentioned node binary, my goal is to make http req from node js using go http pkg |
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Can you describe the Node.js version you use? |
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Note that when I use go run, the appropriate wasm wrapper is already present in the environment variable, so I am indeed running a wasm binary, as you can see from the runtime information printed. |
v21.7.3 |
PS T:\gotmp> $env:GOARCH="wasm"
PS T:\gotmp> $env:GOOS="js"
PS T:\gotmp> cat .\main.go
//go:build js && wasm
package main
import (
"fmt"
"io"
"log"
"net/http"
"runtime"
"syscall/js"
)
func main() {
fmt.Println(runtime.GOOS)
fmt.Println(runtime.GOARCH)
var p = js.Global().Get("process").Get("version").String()
fmt.Println(p)
c := http.Client{
Transport: http.DefaultTransport,
}
resp, err := c.Get("https://httpbin.org/anything")
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}
log.Println(string(body))
}
PS T:\gotmp> node --version
v21.7.3
PS T:\gotmp> go version
go version go1.23.0 windows/amd64
PS T:\gotmp> go run main.go
js
wasm
v21.7.3
2024/09/03 22:36:21 {
"args": {},
"data": "",
"files": {},
"form": {},
"headers": {
"Accept": "*/*",
"Accept-Encoding": "br, gzip, deflate",
"Accept-Language": "*",
"Host": "httpbin.org",
"Sec-Fetch-Mode": "cors",
"User-Agent": "node",
"X-Amzn-Trace-Id": "Root=1-66d71ee2-595ae3d765b1eb967f72c0e7"
},
"json": null,
"method": "GET",
"origin": "8.217.95.142",
"url": "https://httpbin.org/anything"
}I can't reproduce it with exactly same version on Windows. Can you try to reproduce it on Linux? |
I am running this on MacOS(12.7.6), i followed this tutorial, did u tried with cmd i used? : |
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I can reproduce it on Linux zxilly@Zxilly-s-PC:/mnt/t/gotmp$ GOOS=js GOARCH=wasm go run -exec="$(go env GOROOT)/misc/wasm/go_js_wasm_exec" .
js
wasm
v22.8.0
2024/09/04 17:39:14 Get "https://httpbin.org/anything": dial tcp: lookup httpbin.org on 127.0.0.53:53: write udp 127.0.0.1:4->127.0.0.53:53: write: Connection reset by peer
exit status 1I'll dive into it. |
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Change https://go.dev/cl/611215 mentions this issue: |
Go version
go version go1.22.0 darwin/amd64
Output of
go envin your module/workspace:What did you do?
I want to make HTTP request from Go WASM inside Node JS.
Here is sample main.go
When i try to execute WebAssembly with Node.js with cmd:
I get bellow error:
I understood that with this PR if i add js/wasm build tags that http.DefaultTransport will use RoundTripper with fetch options.
What did you see happen?
What did you expect to see?
Response similar to bellow:
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