I can't see any chart

[Deses]

Describe the bug

I installed your app on my unraid server using docker. Edited the conf file to enable the WebUI:

twitch_miner.analytics(host="0.0.0.0", port=5000, refresh=5, days_ago=7) # Start the Analytics web-server

Then I set up Nginx-Reverse-Proxy to connect through http://tpm.unraid.nas/ rather than http://192.168.1.130:5000/.

I can access the WebUI just fine and I can see the logs and how the points increase, but the graph is stuck at loading.

Chrome's Dev Console shows this:

Uncaught (in promise) TypeError: Cannot read properties of null (reading 'replace')
    at changeStreamer (script.js:225:38)
    at script.js:299:9
pagedata-script.js:1 CaptureThumbnail error TypeError: a.getContext(...).drawWindow is not a function
    at pagedata-script.js:1:12510
    at pagedata-script.js:1:12723
    at pagedata-script.js:1:13055
    at pagedata-script.js:1:13059
(anonymous) @ pagedata-script.js:1

Firefox' Dev Console shows this:

Uncaught (in promise) TypeError: streamer is null
    changeStreamer http://tpm.unraid.nas/assets/script.js:225
    renderStreamers http://tpm.unraid.nas/assets/script.js:299

Basically, streamer is null. But here's the kicker:

If I click on any of the streamer names, the chart loads and any page refresh works OK because the browser remembers my selection.

The bug, apparently, is that there's no streamer selected on first page load and that's why the chart crashes.

Steps to reproduce

• Open the WebUI on a fresh incognito browser.
• Chart doesn't work.
• Click a streamer's name.
• Chart loads.

Expected behavior

The graphs load.

Operating system

Unraid 6.12.4

Python version

Python 3.12.0

Miner version

v2-1.9.0

Other relevant software versions

No response

Logs

It's not an error of the backend.

Additional context

No response

[rdavydov]

First of all, does it work fine on http://192.168.1.130:5000 ?

And only then you should proceed with http://tpm.unraid.nas

[Deses]

I've updated the issue with my findings. Please take a look at it.

The reverse proxy is not an issue btw.

[rdavydov]

I see now. I made some changes recently so it can remember which streamer was selected.
Yep, incognito is the reason, need to fix the code to select the first streamer if it is the first opening ever.

[Deses]

incognito is the reason

Any first run of the app will encounter this issue until a name of a streamer is clicked. Then the error will never happen again.
I just used incognito to reproduce the issue. :P

[rdavydov]

Yes, gotcha. Incognito = clean browser localStorage, same as on the first opening. ;)