I am using Drupal 8.6.4


When I try to submit a post request, it returns HTML page instead of JSON response.

I am sending headers:

  Content-Type: application/json

and data as:

 { "name": "admin" , "pass": "admin" }

What am I missing?

  • how did you make the post request, you sent the body as Body Raw, i have tested it with this and it works it return { "current_user": { "uid": "1", "roles": [ "authenticated", "administrator", ], "name": "Admin" }, "csrf_token": "e9dWDT505MjVlxhJfmH-CYFoeBAodyzASGUB98B8Fuk", "logout_token": "8ZAv1Pyd0YBEsBV4maTgeLN6rkuOt70Pa3pSMEUvpkA" }
    – berramou
    Feb 16, 2019 at 19:05
  • Hi @berramou , yes I am sending it as raw , but I am getting logged in HTML page. The return value is not json. I am using Postman for testing. Feb 16, 2019 at 21:10
  • make sure that type of raw is JSON (application/json)
    – berramou
    Feb 16, 2019 at 22:27
  • Yes, I have set it Content-Type: application/json . But I am not sure why it is giving me HTML. It should have worked, but I am still unable to fix it. Feb 16, 2019 at 22:31
  • 2
    I have figured it. Turns out that Redirect after login was redirecting to the given URL which resulted in HTML output. I have disabled that and now I am getting proper JSON response. Feb 17, 2019 at 0:37

1 Answer 1


It turned out that the Redirect after login module was redirecting to the given URL, which resulted in HTML being output. I have disabled that and now I am getting the proper JSON response.

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