Cannot grant access

Same issue here with nextcloud inside a Docker and behind a nginx reverse-proxy. I’ve set 'overwriteprotocol' => 'https' but it doesn’t solve the issue.

I managed to login with windows desktop app with the old login system, but I can’t log into the macos app.

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I have the same setup, and I’m having the same problem. If this is an nginx configuration error, does anyone have a suggestion as to what I need to change?

I got the same issue. Grant access button is not working. Only android client can connect. iOS win and linux all can not connect. Chrome console says that

Refused to send form data to ‘’ because it violates the following Content Security Policy directive: “form-action ‘self’”.

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I have the same issue. On a company provided macbook on which I am not allowed to modify networking/proxy configuration, I’m completely blocked for the installation of the nextcloud client due to this.
IMHO this is a bug in the client, because there’s simply nothing happening when you press the button, no error message, nothing.

i 've got the same problem!
last time i used an older client to login but that doesn’t work anymore…

grant access is doing nothing…

server: 17.0.2
client: 2.6

i am using nextcloud as docker with letsencrypt companion docker and nginx reverse proxy docker

‘overwriteprotocol’ => ‘https’ does not help

please help us!

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Hello All,

to solve this issue you need to add ‘overwriteprotocol’ => ‘https’ in config/config.php in nextcloud, I tested and solving the issue, here the explaination


  • When generating URLs, Nextcloud attempts to detect whether the server is
  • accessed via https or http. However, if Nextcloud is behind a proxy
  • and the proxy handles the https calls, Nextcloud would not know that
  • ssl is in use, which would result in incorrect URLs being generated.
  • Valid values are http and https.
    ‘overwriteprotocol’ => ‘’,

EDIT: Installed the docker and added:
‘overwriteprotocol’ => ‘https’,
Which indeed did work!

I have the same problem:

Behind an Nginx reverse proxy; and no app works. When adding overwriteprotocol https nothing works anymore. which is logical I gues because: nextcloud -> nginx is http…

Any solution to this?

[edit] Strangely: it did work before installing two factor authentication… but now after uninstalling it; it still doesn’t work. [/edit]

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I’m running nextcloud in docker containers and finally got this too work.

Upgraded to 18.01 and then added following to config/config.php

‘overwriteprotocol’ => ‘https’,

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'overwriteprotocol' => 'https' does not work when Nextcloud is running behind a reverse proxy. The system returns:

Content Security Policy: The page’s settings blocked the loading of a resource
at (“form-action”).

Editing the trusted domains and trusted proxies settings in config.php does not work, either.

Still waiting for a solution on this one.

I still have the same problem here with nextcloud in docker behind a traefik2 in docker.
There really is a error message missing.
I will try to add 'overwriteprotocol’ => ‘https’ to my docker-compose file - i’ll report if that helps.

yeah - that worked but how to Integrate this into a docker-compose file

Big trouble whith the “grant acces” procedure from the 2.5.XX version of th client on Debian Buster.
Adding the PPA won’t work since the last version will only be available for xenial distros.
had to compile from source the 2.7.xx with no difficulty at all.
Work’s very well !
Please publish some adapted ppa :wink:

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I’m having the same issue and overwrite and trusted configs do not work. In a desktop browser I have to refresh the the tab to login as I get the ‘Content Security Policy’ error messge. In the iOS app I’m stuck on the grant access screen as it does not redirect.

Just wanted to say thanks - this solved my ios issues. Just completed installing via k8s and I was oh no why isn’t this working. excellent forum thanks y’all :grinning:

Editing a config.php file is not possible on my docker servers, everything is stateless regarding nextcloud itself.
I tried using the documented environment variable “OVERWRITEPROTOCOL” (set to https) but with no difference.

Currently, a possible workaround to the “cannot grant access” problem is to use the OwnCloud desktop client.

problem with Docker you may check here

Thank you!
I have the same problem with docker.
Just add
‘overwriteprotocol’ => ‘https’,
to config.php and everything is fine !
Thank a lot all you people! )

But I was need to reinstall nextcloud client at all my devices (win10, macos, android)



sorry to jump on to this thread but i am having the same issue here , not sure if im going to the right place to edit config.php ( im fairly new to all this )

but the one i have found within the nectcloud app docker container at /var/www/html/data/config.php
doesnt look like the one at the following address

Worked for me, thanks!

Hi all,
I’m running Nextcloud in a FreeNAS jail and am having trouble getting my clients to access the server via my public facing domain. Through a web browser off of my network I can access my server just fine so I know it’s up and running. It is behind an Nginx reverse-proxy.
Editing config.php file in /usr/local/www/nextcloud/config to add ‘overwriteprotocol’ => ‘https’ does not work for me for allowing the android client to access my nextcloud server off of my LAN.

Does anyone have a solution for this? It doesn’t seem like it should be a complicated issue especially in this case where I know the server is accessible publicly in the first place.