new file mode 100644
--- /dev/null
+++ b/src/http/modules/proxy/ngx_http_proxy_header.c
@@ -0,0 +1,75 @@
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+#include <ngx_http_proxy_handler.h>
+
+
+int ngx_http_proxy_copy_header(ngx_http_proxy_ctx_t *p,
+                               ngx_http_proxy_headers_in_t *headers_in)
+{
+    int                  i;
+    ngx_table_elt_t     *ho, *h;
+    ngx_http_request_t  *r;
+
+    r = p->request;
+
+    h = headers_in->headers->elts;
+    for (i = 0; i < headers_in->headers->nelts; i++) {
+
+        if (&h[i] == headers_in->connection) {
+            continue;
+        }
+    
+        if (p->accel) {
+            if (&h[i] == headers_in->date
+                || &h[i] == headers_in->accept_ranges) {
+                continue;
+            }
+    
+            if (&h[i] == headers_in->server && !p->lcf->pass_server) {
+                continue;
+            } 
+        }
+    
+        if (&h[i] == headers_in->content_type) {
+            r->headers_out.content_type = &h[i];
+            r->headers_out.content_type->key.len = 0;
+            continue;
+        }
+
+        if (!(ho = ngx_http_add_header(&r->headers_out, ngx_http_headers_out)))
+        {
+            return NGX_ERROR;
+        }
+    
+        *ho = h[i];
+    
+        /*
+         * ngx_http_header_filter() does not handle specially
+         * the following headers if they are set:
+         *     r->headers_out.server,
+         *     r->headers_out.date,
+         *     r->headers_out.content_length
+         */
+
+        if (&h[i] == headers_in->server) {
+            r->headers_out.server = ho;
+            continue;
+        }
+
+        if (&h[i] == headers_in->date) {
+            r->headers_out.date = ho;
+            continue;
+        }
+
+        if (&h[i] == headers_in->content_length) {
+            r->headers_out.content_length = ho;
+            r->headers_out.content_length_n = ngx_atoi(ho->value.data,
+                                                       ho->value.len);
+            continue;
+        }
+    }
+
+    return NGX_OK;
+}