allowing handling 400 errors via proxy_pass
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 8788dee..fc24d90 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -514,12 +514,7 @@
         } else {
             r->lingering_close = 0;
         }
-    }
 
-    r->valid_unparsed_uri = 1;
-    r->valid_location = 1;
-
-    if (!r->internal) {
         r->phase_handler = 0;
 
     } else {
@@ -527,6 +522,12 @@
         r->phase_handler = cmcf->phase_engine.server_rewrite_index;
     }
 
+    if (r->unparsed_uri.len) {
+        r->valid_unparsed_uri = 1;
+    }
+
+    r->valid_location = 1;
+
     r->write_event_handler = ngx_http_core_run_phases;
     ngx_http_core_run_phases(r);
 }
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 73eeeb0..5ce2e2a 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -979,7 +979,7 @@
         c->error = rev->error;
         c->log->action = "sending response to client";
 
-        ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+        ngx_http_finalize_request(r, NGX_HTTP_CLIENT_CLOSED_REQUEST);
         return NGX_ERROR;
     }
 
diff --git a/src/http/ngx_http_special_response.c b/src/http/ngx_http_special_response.c
index 6658ed0..8ddfce9 100644
--- a/src/http/ngx_http_special_response.c
+++ b/src/http/ngx_http_special_response.c
@@ -299,6 +299,9 @@
 };
 
 
+static ngx_str_t  ngx_http_get_name = { 3, "GET " };
+
+
 ngx_int_t
 ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
 {
@@ -364,6 +367,7 @@
                 r->err_status = err_page[i].overwrite;
 
                 r->method = NGX_HTTP_GET;
+                r->method_name = ngx_http_get_name;
 
                 uri = &err_page[i].uri;