Like the title said some user have reported a 401 error while trying to accessing a form on our website. The problems seems to occur when the user has already filled the form and has a mkto cookie on his machine.
I was able to recreate the problem on my machine and was able to fix it by clearing my cookies but I cannot ask my customer to do that.
I ask our dev team to look into it and they came back blaming Marketo for the error.
What can cause this and what can be done to fix that?
This page isn't using native Marketo form embed code so this is more likely a problem with how the form has been customized.