update CORS headers (#50)

Author: sgmv

Diff for: internal/api/middleware.go

@@ -164,7 +164,7 @@ func CORSMiddleware() gin.HandlerFunc {
 			"Access-Control-Allow-Headers",
 			"Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, "+
 				"Authorization, accept, origin, Cache-Control, X-Requested-With")
-		c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT")
+		c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT, PATCH")
 
 		if c.Request.Method == http.MethodOptions {
 			c.AbortWithStatus(http.StatusNoContent)