Forum Discussion

Håkan_135754's avatar
Håkan_135754
Icon for Nimbostratus rankNimbostratus
Sep 18, 2018

Client initiated form based SSO fails.

Hi, I'm trying to setup "client initiated form based SSO" in APM. I have a very simple test form but APM complains about that it isn't HTML in the response. I always get the error: 

Sep 18 17:07:42 slot3/apstacc2-cl debug tmm2[20254]: 014d0536:7: /Common/allow_all:sc02_Appver:d156861a: Client initiated SSO non-HTML response received - Disabling response scan. sso config: /Common/test_formbased_sso, form: loginform

This is the very simple login form:

Can anyone explain why APM thinks that this form isn't an HTML form?

application delivery
BIG-IP Access Policy Manager (APM)
  • Nicolas_Destor's avatar
    Nicolas_Destor
    Icon for Cirrostratus rankCirrostratus
    Sep 19, 2018

    Hi,

     

    I suggest you to check the html source code of the logon page.

     

    According to the error "non-HTML response received", the logon page seems to be not well formated. By consequence F5 device can't parse the page to extract/fill automatically the input fields required for SSO.

     

  • youssef1's avatar
    youssef1
    Icon for Cumulonimbus rankCumulonimbus
    Sep 19, 2018

    Hi,

     

    it's seems that response is non-html (response from the server), it would be Content-Type: "text/html". and instead you receive "application/pdf" (for example) .

     

    It's due to your APP. So I advise you to use Developer Tools (F12) and capture traffic betwin your browser and the server (set your VS to L4 or attach the backend server directly).

     

    It will allow you to see the response from the server when auth is done then to adjust your configuraiton.

     

    keep me update.

     

    regards,