Limitations In Shiny for Python http headers

[kramerrs]

I have a question if there are any known limitations in shiny for python headers (EG large cookies).

I have an app that is failing to make a WebSocket connection for a specific user. I've had problems like this with R/Shiny and data tables, where with SSO the third party cookies were too big. Though this should only have the SAML cookies. These themselves have been known to get out of hand, but R/Shiny generally handled them. I am wondering if there is somewhere where I can set the sizes? It's only one user and it happens after the login.

The error in the browser console is this:

65072a86-09cd-42d4-a04c-41e80b160681/:61 Uncaught TypeError: Cannot read properties of null (reading 'addEventListener')
at 65072a86-09cd-42d4-a04c-41e80b160681/:61:52
(anonymous) @ 65072a86-09cd-42d4-a04c-41e80b160681/:61
shiny.iframe.js:29 Called ErrorHandlingWebSocket