Blame SOURCES/httpd-2.4.6-r1650677.patch

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--- a/modules/proxy/mod_proxy_fcgi.c	2015/01/09 21:25:26	1650676
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+++ b/modules/proxy/mod_proxy_fcgi.c	2015/01/09 21:33:12	1650677
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@@ -367,7 +367,7 @@
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                              request_rec *r, int request_id)
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 {
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     apr_bucket_brigade *ib, *ob;
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-    int seen_end_of_headers = 0, done = 0;
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+    int seen_end_of_headers = 0, done = 0, ignore_body = 0;
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     apr_status_t rv = APR_SUCCESS;
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     int script_error_status = HTTP_OK;
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     conn_rec *c = r->connection;
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@@ -577,9 +577,16 @@
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                                 APR_BRIGADE_INSERT_TAIL(ob, tmp_b);
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                                 r->status = status;
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                                 ap_pass_brigade(r->output_filters, ob);
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-                                ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01070)
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-                                              "Error parsing script headers");
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-                                rv = APR_EINVAL;
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+                                if (status == HTTP_NOT_MODIFIED) {
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+                                    /* The 304 response MUST NOT contain
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+                                     * a message-body, ignore it. */
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+                                    ignore_body = 1;
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+                                }
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+                                else {
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+                                    ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01070)
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+                                                    "Error parsing script headers");
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+                                    rv = APR_EINVAL;
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+                                }
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                                 break;
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                             }
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@@ -598,7 +605,7 @@
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                                 r->status = HTTP_OK;
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                             }
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-                            if (script_error_status == HTTP_OK) {
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+                            if (script_error_status == HTTP_OK && !ignore_body) {
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                                 rv = ap_pass_brigade(r->output_filters, ob);
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                                 if (rv != APR_SUCCESS) {
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                                     break;
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@@ -626,7 +633,7 @@
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                          * but that could be a huge amount of data; so we pass
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                          * along smaller chunks
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                          */
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-                        if (script_error_status == HTTP_OK) {
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+                        if (script_error_status == HTTP_OK && !ignore_body) {
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                             rv = ap_pass_brigade(r->output_filters, ob);
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                             if (rv != APR_SUCCESS) {
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                                 break;