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net/http: can't send star request #11202

dvyukov opened this issue Jun 13, 2015 · 2 comments


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commented Jun 13, 2015

The following program fails with the panic:

package main

import (

func main() {
    data := []byte("M-SEARCH * HTTP/1.1\n\n")
    r, err := http.ReadRequest(bufio.NewReader(bytes.NewReader(data)))
    if err != nil {
    buf := new(bytes.Buffer)
    if err := r.Write(buf); err != nil {
    _, err = http.ReadRequest(bufio.NewReader(buf))
    if err != nil {
panic: parse %2A: invalid URI for request

Star is a common path for some request types. It is handled by a special path in URL.Parse, but URL.String generated %2A for it, which is an invalid path.

go version devel +a1fe3b5 Sat Jun 13 04:33:26 2015 +0000 linux/amd64

@ianlancetaylor ianlancetaylor added this to the Go1.5Maybe milestone Jun 13, 2015


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commented Jun 13, 2015

See #5684.


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commented Jun 25, 2015

CL mentions this issue.

@bradfitz bradfitz closed this in 1284d7d Jun 26, 2015

@mikioh mikioh modified the milestones: Go1.5, Go1.5Maybe Jun 27, 2015

@golang golang locked and limited conversation to collaborators Jun 27, 2016

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