How do I get the CSRF Token inside JS variable in JMeter

Question

The response that I'm getting in JMeter vs Browser's Network tab response doesn't match. There's a CSRF token but it's not placed on a hidden input tag it's inside a JS var and is being returned when page is accessed.

I'm using a Regular Expression Extractor but I'm not sure if I get the correct CSRF value

So the script looks like this:

<script type="text/javascript">
    var csrf_token = "CSRFTokenHere"

And my Regular Expression Extractor looks like this:

window.csrf_token              = '(.+?)';

Answer 1

You should use something like:

var csrf_token = "(.+?)"

Demo:

Useful materials:

• JMeter Regular Expressions
• Perl 5 Regex Cheat sheet
• Using RegEx (Regular Expression Extractor) with JMeter