From eb8c1faa5165db4ef79ac0751a152257365a4165 Mon Sep 17 00:00:00 2001
From: Jeff Ashton <jeff.ashton@cantire.com>
Date: Sun, 13 Sep 2015 15:56:34 -0400
Subject: [PATCH] Adding support for OPTIONS requests to ESP8266WebServer

---
 libraries/ESP8266WebServer/src/ESP8266WebServer.h | 2 +-
 libraries/ESP8266WebServer/src/Parsing.cpp        | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/libraries/ESP8266WebServer/src/ESP8266WebServer.h b/libraries/ESP8266WebServer/src/ESP8266WebServer.h
index 33b7b8401..7ccc01c37 100644
--- a/libraries/ESP8266WebServer/src/ESP8266WebServer.h
+++ b/libraries/ESP8266WebServer/src/ESP8266WebServer.h
@@ -26,7 +26,7 @@
 
 #include <functional>
 
-enum HTTPMethod { HTTP_ANY, HTTP_GET, HTTP_POST, HTTP_PUT, HTTP_PATCH, HTTP_DELETE };
+enum HTTPMethod { HTTP_ANY, HTTP_GET, HTTP_POST, HTTP_PUT, HTTP_PATCH, HTTP_DELETE, HTTP_OPTIONS };
 enum HTTPUploadStatus { UPLOAD_FILE_START, UPLOAD_FILE_WRITE, UPLOAD_FILE_END };
 
 #define HTTP_DOWNLOAD_UNIT_SIZE 1460
diff --git a/libraries/ESP8266WebServer/src/Parsing.cpp b/libraries/ESP8266WebServer/src/Parsing.cpp
index 6a63b0bda..232fa0e03 100644
--- a/libraries/ESP8266WebServer/src/Parsing.cpp
+++ b/libraries/ESP8266WebServer/src/Parsing.cpp
@@ -59,6 +59,8 @@ bool ESP8266WebServer::_parseRequest(WiFiClient& client) {
     method = HTTP_POST;
   } else if (methodStr == "DELETE") {
     method = HTTP_DELETE;
+  } else if (methodStr == "OPTIONS") {
+    method = HTTP_OPTIONS;
   } else if (methodStr == "PUT") {
     method = HTTP_PUT;
   } else if (methodStr == "PATCH") {