diff --git a/lib/routes/bins/update.js b/lib/routes/bins/update.js
index 387c83a0..ec71c2bb 100644
--- a/lib/routes/bins/update.js
+++ b/lib/routes/bins/update.js
@@ -4,20 +4,11 @@ const validate = require("har-validator");
 module.exports = function (req, res, next) {
 	const id = req.params.uuid;
 	let mock = req.jsonBody;
-
-	// check for full HAR
-	if (req.jsonBody?.response) {
-		mock = req.jsonBody.response;
-	}
-
-	// exception for the web Form
-	// TODO eliminate this and rely on req.simple.postData.text
-	if (req.simple.postData.params?.response) {
-		try {
-			mock = JSON.parse(req.simple.postData.params.response);
-		} catch (e) {
-			debug(e);
-		}
+	if (!mock) {
+		res.body = {
+			errors: "Response HAR is required",
+		};
+		next();
 	}
 
 	// overritten by application/x-www-form-urlencoded or multipart/form-data