fix r3981 again for case "Accept-Encoding: gzip"

diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index d2b90f16f8e47b528e0dd67c413ebc93bf60a467..f7ebacb40282bf51897678da6cbd0e87c72109ec 100644 (file)
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -2209,7 +2209,7 @@ ngx_http_gzip_accept_encoding(ngx_str_t *ae)
             return NGX_DECLINED;
         }
 
-        if (p > start && (*(p - 1) == ',' || *(p - 1) == ' ')) {
+        if (p == start || (*(p - 1) == ',' || *(p - 1) == ' ')) {
             break;
         }