From 9e9d393de87de758f870e80cd56c669f9f53ffd0 Mon Sep 17 00:00:00 2001
From: Adrian Amaglio <adrian@amaglio.fr>
Date: Tue, 25 Aug 2020 09:48:46 +0200
Subject: [PATCH] add error message when supplied id is wrong

---
 client/index.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/client/index.js b/client/index.js
index 3efafe8..4709801 100644
--- a/client/index.js
+++ b/client/index.js
@@ -16,6 +16,10 @@ function interceptForm (formId) {
      * Param formId is the HTML id of the form
      */
     const formElem = document.getElementById(formId)
+    if (!formElem) {
+        console.error('You tried to intercept form id:"' + formId + '" but it was not found.')
+        return
+    }
     formElem.onsubmit = async (e) => {
         e.preventDefault()
         fetch(formElem.action, {