What could be causing the error message "CSRF token missing or incorrect" to appear?

Question

What could be causing the error message "CSRF token missing or incorrect" to appear?

I am facing an issue with returning a value from a View function in Django. This particular function is called from a JavaScript code using Ajax, but I'm encountering an error that says 'Forbidden (CSRF token missing or incorrect)'.

JavaScript/Ajax

The Error message

Here's a snippet of the HTML code involved:


    <div align="center" class="input-line">
     <form class="input-form" method="post">{% csrf_token %}
        <input type = "text" id = "ans" class = "form-control" name = "address" placeholder="Type postcode..."><br><br>
        <button id = "homeBtn" class="btn btn-primary">Find info</button><br><br>
     </form>
</div>

The specific View Function causing trouble is as follows:


    def result(request):
        if(request == 'POST'):
           param = request.form['my data']
           this = runAreaReview(param) #This returns a string
           return HttpResponse(this)

javascript ajax django python-3.x

Answer 1

Answer №1

Tips for Handling CSRF Tokens

When making post requests using ajax, remember to include the HTTP_X_CSRFTOKEN header with the cookie value csrftoken stored in the browser. For more information, check out this reference guide.

var csrftoken = Cookies.get('csrftoken');
 $.ajax(
     ...
     headers:{"HTTP_X_CSRF_TOKEN":csrftoken}
 );

If you're using a reverse proxy server like nginx, ensure that you also forward this header to the django application.

Bypassing CSRF Verification

If needed, you can disable csrf verification for a specific view by using the @csrf_exempt annotation. Here's a helpful guide on how to implement it.

from django.views.decorators.csrf import csrf_exempt

@csrf_exempt
def result(request):
    ...

Consider Security Risks

While it's possible to turn off the csrf middleware in settings for non-production projects, this method is not recommended for security purposes. Only use this approach if you are building something for recreational purposes and not for production.

Answer 2

Tips for Handling CSRF Tokens

When making post requests using ajax, remember to include the HTTP_X_CSRFTOKEN header with the cookie value csrftoken stored in the browser. For more information, check out this reference guide.

var csrftoken = Cookies.get('csrftoken');
 $.ajax(
     ...
     headers:{"HTTP_X_CSRF_TOKEN":csrftoken}
 );

If you're using a reverse proxy server like nginx, ensure that you also forward this header to the django application.

Bypassing CSRF Verification

If needed, you can disable csrf verification for a specific view by using the @csrf_exempt annotation. Here's a helpful guide on how to implement it.

from django.views.decorators.csrf import csrf_exempt

@csrf_exempt
def result(request):
    ...

Consider Security Risks

While it's possible to turn off the csrf middleware in settings for non-production projects, this method is not recommended for security purposes. Only use this approach if you are building something for recreational purposes and not for production.

Answer 3

Answer №2

If you happen to stumble upon this discussion, it's important to note that in Django 2.1, the correct HEADER key should be X-CSRFToken. Here is a helpful link for more information: https://docs.djangoproject.com/en/2.1/ref/csrf/

Answer 4

If you happen to stumble upon this discussion, it's important to note that in Django 2.1, the correct HEADER key should be X-CSRFToken. Here is a helpful link for more information: https://docs.djangoproject.com/en/2.1/ref/csrf/

What could be causing the error message "CSRF token missing or incorrect" to appear?

Answer №1

Answer №2

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