I have a problem with JMeter. I am trying to perform performance tests with the BlazeMeter extension. When making some requests, I get an error with the CSRF. I already tried extracting the token with a regular expression extractor, but it doesn't find it.
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<h1>Prohibido <span>(403)</span></h1>
<p>Verificación CSRF fallida. Solicitud abortada</p>
<p>Estás viendo este mensaje porqué esta web requiere una cookie CSRF cuando se envían formularios. Esta cookie se necesita por razones de seguridad, para asegurar que tu navegador no ha sido comprometido por terceras partes.</p>
<p>Si has inhabilitado las cookies en tu navegador, por favor habilítalas nuevamente al menos para este sitio, o para solicitudes del mismo origen.</p>
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<h2>Help</h2>
<p>Reason given for failure:</p>
<pre> CSRF cookie not set.
</pre>
<p>In general, this can occur when there is a genuine Cross Site Request Forgery, or when <a href="https://docs.djangoproject.com/en/2.1/ref/csrf/">Django's CSRF mechanism</a> has not been used correctly. For POST forms, you need to ensure:</p>
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<li>Your browser is accepting cookies.</li>
<li>The view function passes a <code>request</code> to the template's <a href="https://docs.djangoproject.com/en/dev/topics/templates/#django.template.backends.base.Template.render"><code>render</code></a> method.</li>
<li>In the template, there is a <code>{% csrf_token %}</code> template tag inside each POST form that targets an internal URL.</li>
<li>If you are not using <code>CsrfViewMiddleware</code>, then you must use <code>csrf_protect</code> on any views that use the <code>csrf_token</code> template tag, as well as those that accept the POST data.</li>
<li>The form has a valid CSRF token. After logging in in another browser tab or hitting the back button after a login, you may need to reload the page with the form, because the token is rotated after a login.</li>
</ul>
<p>You're seeing the help section of this page because you have <code>DEBUG = True</code> in your Django settings file. Change that to <code>False</code>, and only the initial error message will be displayed.</p>
<p>You can customize this page using the CSRF_FAILURE_VIEW setting.</p>
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I tried to create this regular expression
