admin-ajax.php 403 (bad request)

is the problem solved when you clear cache?

Cache was cleared but the problem is still there. You can see it when you go to Chrome Developer Tools and press F5 on any screen you see the error message: 89jd.js:3 POST https://test-vergleiche.com/wp-admin/admin-ajax.php 403 (Forbidden)

Example page: https://test-vergleiche.com/rasentrimmer-vergleich/

send @ 89jd.js:3
ajax @ 89jd.js:3
a.ajax @ 89jd.js:4
c.fn.kkstarratings.fetch @ 89jd.js:5
c.fn.kkstarratings @ 89jd.js:5
(anonymous) @ 89jd.js:5
j @ 89jd.js:1
k @ 89jd.js:1
setTimeout (async)
(anonymous) @ 89jd.js:1
i @ 89jd.js:1
fireWith @ 89jd.js:1
fire @ 89jd.js:1
i @ 89jd.js:1
fireWith @ 89jd.js:1
ready @ 89jd.js:1

• This reply was modified 6 years, 6 months ago by muckidee.
• This reply was modified 6 years, 6 months ago by muckidee.

Please contact me via email: https://www.wpfastestcache.com/contact-us/

I received same error, but when I clear all cache it is ok for a while(one day) I have to admit that he did so with w3totalcache. I publish articles until Friday and Sunday I notice that there is this error admin-ajax.php 403 (bad request). After I delete the cache everything is ok. I clear cache every time when a post is published.

I do not know how to solve this problem, I know it’s not from this plugin but is from cache plugin.

The problem is caused by wp nonce security system. You should set a cache timeout rule as below.

https://www.wpfastestcache.com/tutorial/wordpress-nonce-cache/

Thank you