net/http: Inconsistent output with req.URL.RequestURI()

[namitaofficial22]

Go version

go1.22

Output of go env in your module/workspace:

Issue is seen in online editor of https://go.dev/play/.

What did you do?

Below program o/p is giving different o/p with calls to req.URL.RequestURI().
First time o/p is printing unescaped URL. But Second time call is giving escaped URL.
It should be consistent.

package main

import (
"fmt"
"net/http"
)

func main() {
// Get the full request URI
req, _ := http.NewRequest("GET", "http://example.com/a%2Fv", nil)
// Print the request URI
fmt.Println("Request URI: \n", req.URL.RequestURI())
req.URL.Path = "a%2Fv"
fmt.Println("After URI: \n", req.URL.RequestURI())
}

O/p:
Request URI:
/a%2Fv
After URI:
a%252Fv

What did you see happen?

Above sample program o/p is giving different o/p with calls to req.URL.RequestURI().
First time o/p is printing unescaped URL. But Second time call is giving escaped URL.
It should be consistent.

What did you expect to see?

Both the times calling req.URL.RequestURI() should provide same kind of URL(either escaped or unescaped).
O/p should be consistent.

O/p seen is:
Request URI:
/a%2Fv
After URI:
a%252Fv

[seankhliao]

see the documentation for net/URL.URL for the expected format of the Path field.

closing as not a bug.

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