Docker variant: WegGL error for rendering panel based on Geomap plugin

[RastaTaz]

What happened:
I want to perform PNG export of a panel that is basad on Geomap plugin vaduga-mapgl-panel.
I did only get legends of the map/panel in the resulting PNG.
Further look into renderer container logs shows error in below log extract (censored URL to protect privacy):

2024-12-08T15:44:46.413033802Z ERR Browser console error | column=1363281 line=1 msg=deck: Failed to create WebGL context: Failed to create a WebGL2 context.  url=http://grafana:3000/public/plugins/vaduga-mapgl-panel/module.js?_cache=1.6.1 
2024-12-08T15:44:46.416867379Z ERR Browser uncaught exception | error=Error: Failed to create WebGL context: Failed to create a WebGL2 context.
i (http://grafana:3000/public/plugins/vaduga-mapgl-panel/module.js?_cache=1.6.1:2:1336527)
new fg (http://grafana:3000/public/plugins/vaduga-mapgl-panel/module.js?_cache=1.6.1:2:1336809)
fg.create (http://grafana:3000/public/plugins/vaduga-mapgl-panel/module.js?_cache=1.6.1:2:1335786) 
2024-12-08T15:45:44.451310624Z ERR Error while trying to prepare page for screenshot | err=TimeoutError: Navigation timeout of 60000 ms exceeded
    at new Deferred (/usr/src/app/node_modules/puppeteer-core/lib/cjs/puppeteer/util/Deferred.js:59:34)
    at Deferred.create (/usr/src/app/node_modules/puppeteer-core/lib/cjs/puppeteer/util/Deferred.js:21:16)
    at new LifecycleWatcher (/usr/src/app/node_modules/puppeteer-core/lib/cjs/puppeteer/cdp/LifecycleWatcher.js:69:60)
    at CdpFrame.goto (/usr/src/app/node_modules/puppeteer-core/lib/cjs/puppeteer/cdp/Frame.js:151:29)
    at CdpFrame.<anonymous> (/usr/src/app/node_modules/puppeteer-core/lib/cjs/puppeteer/util/decorators.js:98:27)
    at CdpPage.goto (/usr/src/app/node_modules/puppeteer-core/lib/cjs/puppeteer/api/Page.js:588:43)
    at /usr/src/app/build/browser/browser.js:290:29
    at Browser.withTimingMetrics (/usr/src/app/build/browser/browser.js:443:20)
    at Browser.takeScreenshot (/usr/src/app/build/browser/browser.js:286:24)
    at async Browser.render (/usr/src/app/build/browser/browser.js:260:20) url=http://grafana:3000/d-solo/<CENSORED_DASHBOARD-ID>/<CENSORED_DASHBOARD-NAME>?orgId=2&from=now-5m&to=now&panelId=11&width=960&height=540&render=1 

What you expected to happen:
Obtain PNG that includes background tiles of map

How to reproduce it (as minimally and precisely as possible):

• Use grafana and render plugin in docker container as documented
• add a panel using the vaduga-mapgl-panel geomap
• perfrom call to render plugin to render panel

Anything else we need to know?:
Current setup I'm using works perfectly well when requesting render on other panels (standard graphs panels).

Environment:

• Grafana Image Renderer version: current latest version of grafana/grafana-image-renderer image on dockerhub (= v3.11.6 according to tag)
• Grafana version: current latest version of grafana/grafana-enterprise (= v11.4.0 according to tag)
• Installed plugin or remote renderer service: remote renderer through docker image
• OS Grafana Image Renderer is installed on: CentOS Stream 9, but again it's using docker so OS shouln't be relevant
• User OS & Browser: Ubuntu 24.04 and Brave Browser (but not relevant to current issue either)
• Others: none that I can think of being relevant to issue, but just ask and I will provide answers...