Dash Callbacks Firing Locally But Not When Run On Server

[shalabh]

I have a Dash app that is running on local without any error. However when i run on the development server it is giving the error ’
Callback failed: the server did not respond.’

The page is loading in the server but the components which will be initialized by call backs are not working.

I am using flask server. I found the topic with similar issue:

Dash Page-Load Callbacks Firing Locally But Not When Run On Server

I have a Dash app that, when run locally, runs well. Callbacks fire as they should (on page load) and the app is usable. However, when the app is deployed to a Linux server the callbacks stop working. The server uses NGINX for URL redirection, I am not sure if this would be problematic with interfering with the callbacks, but it is worth mentioning. The page itself loads. Everything not dependent on callbacks is functioning, so I can safely say the callbacks are not working. Dash pages set up…

In this topic, the server is NGINX and the solution was to increase server maximum entity size.

Is this can be issue in flask server? I couldn’t find any config parameter related to maximum entity in Dash.
Please help.

[wxy829475]

Did you solve this issue? I meet exactly same problem that everything run perfectly at local, but suddenly those dynamic callbacks stop to run on server (EC2 instance) and saying server not respond.