Index: modules/proxy/mod_proxy_balancer.c
===================================================================
--- modules/proxy/mod_proxy_balancer.c	(Revision 660643)
+++ modules/proxy/mod_proxy_balancer.c	(Arbeitskopie)
@@ -51,20 +51,17 @@
         return HTTP_BAD_REQUEST;
     }
     /* now parse path/search args, according to rfc1738 */
-    /* N.B. if this isn't a true proxy request, then the URL _path_
-     * has already been decoded.  True proxy requests have r->uri
-     * == r->unparsed_uri, and no others have that property.
-     */
-    if (r->uri == r->unparsed_uri) {
-        search = strchr(url, '?');
-        if (search != NULL)
-            *(search++) = '\0';
-    }
-    else
-        search = r->args;
+    search = NULL;
 
     /* process path */
-    path = ap_proxy_canonenc(r->pool, url, strlen(url), enc_path, 0, r->proxyreq);
+    if (apr_table_get(r->notes, "proxy-nocanon")) {
+        path = url;   /* this is the raw path */
+    }
+    else {
+        path = ap_proxy_canonenc(r->pool, url, strlen(url), enc_path, 0,
+                                 r->proxyreq);
+        search = r->args;
+    }
     if (path == NULL)
         return HTTP_BAD_REQUEST;