nui: add CORS whitelisting to RPCSchemeHandler

Author: berkelium

code/components/nui-resources/src/RPCSchemeHandler.cpp

@@ -158,7 +158,10 @@ class RPCResourceHandler : public CefResourceHandler
 		CefResponse::HeaderMap map;
 		response->GetHeaderMap(map);
 
-		map.insert(std::make_pair("cache-control", "no-cache, must-revalidate"));
+		map.insert({ "cache-control", "no-cache, must-revalidate" });
+		map.insert({ "access-control-allow-origin", "*" });
+		map.insert({ "access-control-allow-methods", "POST, GET, OPTIONS" });
+
 		response->SetHeaderMap(map);
 
 		if (m_found)
@@ -212,4 +215,4 @@ static InitFunction initFunction([] ()
 			handler = new RPCResourceHandler();
 		}
 	});
-});
+});