False positive when 404 is returned

[digininja]

Describe the bug
The extension ignores a 404 response and reports the dev console as being exposed when it shouldn't.

To Reproduce
Steps to reproduce the behavior:

Request:

GET /graphiql HTTP/1.1
Host: dvwa.test
Accept-Encoding: gzip, deflate, br
Accept: */*
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Connection: close
Cache-Control: max-age=0

Response:

HTTP/1.1 404 Not Found
Date: Fri, 31 Jan 2025 08:56:12 GMT
Server: Apache
X-Powered-By: Express
Content-Type: text/plain;charset=UTF-8
Content-Length: 25

Cannot GET
/graphiql.php?

This is reported as an issue because of the string match of graphiql in the response even though the response is a 404.

The php extension is just because I had to use a rewrite rule to get this working on my test server, it does the same on a live client site where it returns just /graphiql?.

Expected behavior
Detect 404s and do not report on them.

Screenshots

Desktop (please complete the following information):
Burp 2025.1 on Ubuntu