IPV6 [I am implementing the IPV6]

The implementation of Dolibarr in IPV6 is working but sometimes there is a Problem that is coming such as:
Access refused by CSRF protection in main.inc.php. Referer of form (http://[2001:8f8:1123:ccf6:3c94:bace:e987:4623]:9091/dolibarr/ecm/index.php?idmenu=29&mainmenu=ecm&leftmenu=) is outside the server that serve this page (with method = POST). If you access your server behind a proxy using url rewriting, you might check that all HTTP headers are propagated (or add the line $dolibarr_nocsrfcheck=1 into your conf.php file to remove this security check).

can this solve the issue? $dolibarr_nocsrfcheck=1

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Access refused by CSRF protection in main.inc.php. Referer of form (http://[2001:8f8:1123:ccf6:3c94:bace:e987:4623]:9091/dolibarr/ecm/index.php) is outside the server that serve this page (with method = POST). If you access your server behind a proxy using url rewriting, you might check that all HTTP headers are propagated (or add the line $dolibarr_nocsrfcheck=1 into your conf.php file to remove this security check).

Can somebody encountered this Problem already?

Administrator : Yes
Type: Internal
Status : Enabled

Session
IP address : 2001:8f8:1123:ccf6:3ccf:a5e9:5c82:68ef
Authentication mode: dolibarr
Connected since: 06/01/2020 10:04 PM
Previous login: 05/31/2020 06:24 PM
Current theme: eldy
Current menu manager: eldy
Current language: en_US
Browser: firefox 68.0 (Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0)
Layout: classic
Screen: 1280 x 606

ISO Bardoquillo (iso)
06/01/2020 10:04 PM
Version Dolibarr 11.0.4

Show More Infos

Administrator : Yes
Type: Internal
Status : Enabled

Session
IP address : 2.50.233.129
Authentication mode: dolibarr
Connected since: 06/01/2020 10:25 PM
Previous login: 06/01/2020 10:04 PM
Current theme: eldy
Current menu manager: eldy
Current language: en_US
Browser: firefox 68.0 (Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0)
Layout: classic
Screen: 1280 x 606

But I did not experience that Problem I encountered on IPV6

You provide several url saying it works, but can you provide 1 way to reproduce the trouble (and only one) ? And describe the full step you do to reproduce the trouble ?

Because I found the solutions Sir, That is why, Sorry that you are confused. Thank you.

hello @isoscent
it seems that you are asking me about this by private messages instead of here.
i dont understand your problem, and you said two years ago that you solved it !
EDIT : it seems that it is the forum engine that is making a mess !