Allow edit requests to include credentials

assets/script.js

@@ -57,6 +57,7 @@ function openEditor() {
                     "Content-Type": "application/x-www-form-urlencoded"
                 },
                 body: body,
+                credentials: "same-origin",
             }
         ).then(response => {
             if (!response.ok) throw new Error("Unexpected status code (" + response.status + ")");