Forum Discussion

Amr_Ali's avatar
Amr_Ali
Icon for MVP rankMVP
Aug 09, 2023

Error: SyntaxError: Unexpected token Error

dears,

I have an issue with one of my web applications, after users check on the tab under a specific URL this error appears ( Error: SyntaxError: Unexpected token '<', "<html><hea"... is not valid JSON ) and after disable the policy from VS the error solved 

 

application delivery
F5 WAF
  • JRahm's avatar
    JRahm
    Icon for Admin rankAdmin
    Aug 15, 2023

    Hi Amr_Ali what type of policy is applied to the VS? If WAF policy, are you able to find in the devtools the ajax call and see if there is an WAF support id?

  • Leslie_Hubertus's avatar
    Leslie_Hubertus
    Ret. Employee
    Aug 11, 2023

    JRahm may be able to help with a syntax question when he gets back from his PTO, if nobody else has answered first.