Title: invalid_client
Last modified: March 6, 2020

---

# invalid_client

 *  [nhannguyenkd](https://wordpress.org/support/users/nhannguyenkd/)
 * (@nhannguyenkd)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/)
 * I have error at [https://prnt.sc/rceaqp](https://prnt.sc/rceaqp). Please help
   me check. Thanks
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Finvalid_client%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 8 replies - 1 through 8 (of 8 total)

 *  Plugin Author [Justin Greer](https://wordpress.org/support/users/justingreerbbi/)
 * (@justingreerbbi)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12516007)
 * Hi!
    The error is odd as we can clearly see it is there. Are you also sending
   a client in the header as well. I see there are 8 headers being sent from your
   screenshot provided.
 * Thanks
 *  Thread Starter [nhannguyenkd](https://wordpress.org/support/users/nhannguyenkd/)
 * (@nhannguyenkd)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12522267)
 * Tab Headers: [https://prnt.sc/rdjeus](https://prnt.sc/rdjeus)
    Tab: [https://prnt.sc/rdjf0w](https://prnt.sc/rdjf0w)
   Please help me check. Thanks
 *  Thread Starter [nhannguyenkd](https://wordpress.org/support/users/nhannguyenkd/)
 * (@nhannguyenkd)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12523053)
 * I has change param and it run. But don’t show code: [https://prnt.sc/rdnkt7](https://prnt.sc/rdnkt7)
   
   Please help me check. Thanks
 *  Plugin Author [Justin Greer](https://wordpress.org/support/users/justingreerbbi/)
 * (@justingreerbbi)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12523235)
 * Hi,
 * It looks to be that permalinks may not be setup as needed in WordPress. Please
   either enabled permalinks by go to `Settings->Permalinks`.
 * Or, changing the URL to use ugly URLs.
 * Example: yourdomain.com?oauth=authorize
    -  This reply was modified 6 years, 3 months ago by [Justin Greer](https://wordpress.org/support/users/justingreerbbi/).
 *  Thread Starter [nhannguyenkd](https://wordpress.org/support/users/nhannguyenkd/)
 * (@nhannguyenkd)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12523259)
 * I has change same here: [https://prnt.sc/rdo742](https://prnt.sc/rdo742). Code
   authorize don’t have only show HTML. Thanks
 *  Plugin Author [Justin Greer](https://wordpress.org/support/users/justingreerbbi/)
 * (@justingreerbbi)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12523272)
 * The URL you changed it to is not correct.
 * Be sure to use properly formatted GET requests.
 * There is too many `?` symbols being used in your URL. The first `?` used is the
   only `?` used. Every parameter after that should be defined using `&`.
 *  Thread Starter [nhannguyenkd](https://wordpress.org/support/users/nhannguyenkd/)
 * (@nhannguyenkd)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12523295)
 * I fix “?” from redirect_uri. And this issue: [https://prnt.sc/rdoa7a](https://prnt.sc/rdoa7a).
   Can you suggest me to fix its. Thanks
 *  Thread Starter [nhannguyenkd](https://wordpress.org/support/users/nhannguyenkd/)
 * (@nhannguyenkd)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12523306)
 * Postman: [https://prnt.sc/rdobc3](https://prnt.sc/rdobc3)
    Backend: [https://prnt.sc/rdobjb](https://prnt.sc/rdobjb)
   Only show HTML.

Viewing 8 replies - 1 through 8 (of 8 total)

The topic ‘invalid_client’ is closed to new replies.

 * ![](https://ps.w.org/oauth2-provider/assets/icon-256x256.gif?rev=2603051)
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 * 8 replies
 * 2 participants
 * Last reply from: [nhannguyenkd](https://wordpress.org/support/users/nhannguyenkd/)
 * Last activity: [6 years, 3 months ago](https://wordpress.org/support/topic/invalid_client/#post-12523306)
 * Status: not resolved