Your admin backend is unreachable. Please check that it is running and respond to http://localhost:3000

Help me!
1

Hello i have some trouble accessing to my admin

Expected behavior

I’m just expecting to acces normally to my admin in dev environment.
I’m under the rails gem forest_liana . I’ve never had this error before.

I’m stuck on this page without any powers to do anything to change the env key or else…

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Actual behavior

The actual behavior is that when it’s asking me to enter my password to unlock the admin i have the message saying that ‘Your admin backend is unreachable. Please check that it is running and respond to http://localhost:3000.’

It happened the first time when i logged out to another forest project and it’s unavailable since this moment.

Here are the logs of my server running =>

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  • Package Version: In app rails gem
  • Database Dialect: PostgreSQL
  • Project Name: AbaShoshin

Thank you in advance for your help .

Joé

2

Hi @Joe_Marc, and welcome to our community.

Do you have any errors in your browser console or in the network tabs?
Also, does this happen on all of your environments or on a specific one ?

Thanks.

3

Hello @jeffladiray , Thanks for your response.

Only this one apparently but on another projet too on dev env.
Here are the browser console logs, i didn’t change anything, and my CORS configuration is fully open …

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Network tab =>

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Thanks

4

my CORS configuration is fully open

What do you mean by that? Did you configure something like rack-cors within your app?

From what I can see here, the forest_liana gem should set everything needed to make this work.

Also, does your app relies on a CORS_ORIGINS environment variable ?

5

Yes i configured rack-cors here is my config and the one that was working before

config.middleware.use Rack::Cors do
      allow do
        origins '*'
        resource '*',
                 headers: :any,
                 methods: [:get, :post, :options, :delete, :put, :patch]
      end
    end

Yes my app relies on CORS_ORIGINS .

6

From what I can see here, the forest_liana gem should set everything needed to make this work.
This is why i don’t really understand the problem :confused:

7

It seems like the error indicate that the received value for the request /forest/session is the wildcard value for Access-Control-Allow-Origin. This stack overflow seems to cover this topic.

I would suggest not to use the * value, even in dev.
If I understood the error correctly, your value overrides the one in forest_liana, that’s why the call seems to fail.

3 Likes
8

Okay that solved it. Apparently due to the fact that i change the cors after i logged in the forest app it didn’t take the changes on the server reboots.
So when i changed accounts it asked me back my password and then took in consideration my previous CORS update.

Thanks a lot for you help :slight_smile:

2 Likes