From c2c69525c13741dcec582dc52f7ef59b1721859d Mon Sep 17 00:00:00 2001
From: t0rchwo0d <awdr1624@gmail.com>
Date: Fri, 17 Feb 2023 12:14:03 +0900
Subject: [PATCH] Revert "Add escape logic for header (#3500)"

This reverts commit 81ac7d55a09e34013225db0aeac6e70c1ae68928.
---
 gin.go         |  4 ----
 routes_test.go | 12 ------------
 2 files changed, 16 deletions(-)

diff --git a/gin.go b/gin.go
index 32dae2497f..35159d03fa 100644
--- a/gin.go
+++ b/gin.go
@@ -9,7 +9,6 @@ import (
 	"html/template"
 	"net"
 	"net/http"
-	"net/url"
 	"os"
 	"path"
 	"strings"
@@ -669,9 +668,6 @@ func redirectTrailingSlash(c *Context) {
 	req := c.Request
 	p := req.URL.Path
 	if prefix := path.Clean(c.Request.Header.Get("X-Forwarded-Prefix")); prefix != "." {
-		prefix = url.QueryEscape(prefix)
-		prefix = strings.ReplaceAll(prefix, "%2F", "/")
-
 		p = prefix + "/" + req.URL.Path
 	}
 	req.URL.Path = p + "/"
diff --git a/routes_test.go b/routes_test.go
index 5310caec25..ada8e1e457 100644
--- a/routes_test.go
+++ b/routes_test.go
@@ -185,18 +185,6 @@ func TestRouteRedirectTrailingSlash(t *testing.T) {
 	w = PerformRequest(router, http.MethodGet, "/path2/", header{Key: "X-Forwarded-Prefix", Value: "/api/"})
 	assert.Equal(t, 200, w.Code)
 
-	w = PerformRequest(router, http.MethodGet, "/path/", header{Key: "X-Forwarded-Prefix", Value: "../../bug#?"})
-	assert.Equal(t, "../../../bug%2523%253F/path", w.Header().Get("Location"))
-	assert.Equal(t, 301, w.Code)
-
-	w = PerformRequest(router, http.MethodGet, "/path/", header{Key: "X-Forwarded-Prefix", Value: "https://gin-gonic.com/#"})
-	assert.Equal(t, "https%3A/gin-gonic.com/%23/https%253A/gin-gonic.com/%2523/path", w.Header().Get("Location"))
-	assert.Equal(t, 301, w.Code)
-
-	w = PerformRequest(router, http.MethodGet, "/path/", header{Key: "X-Forwarded-Prefix", Value: "#bug"})
-	assert.Equal(t, "%23bug/%2523bug/path", w.Header().Get("Location"))
-	assert.Equal(t, 301, w.Code)
-
 	router.RedirectTrailingSlash = false
 
 	w = PerformRequest(router, http.MethodGet, "/path/")