Firefox Issue with Darkmode, prevents page load #139
Description
Versions:
- Firefox: 126.0
- Chrome: 119.0
Description: Upon attempting to detect dark mode during page load, Firefox attempts to operate on the non-existent id=darkmode element in the <head>.
Steps to reproduce:
-
Run
docker run:docker run --name openspeedtest -p 3000:3000 -p 3001:3001 openspeedtest/latest -
Observe a blank window (failed page load), with the following in the browser console:
OpenSpeedTest.com V2.5.4 Loaded! localhost:3000:131:15
Now Press the Start Button or HIT Enter. localhost:3000:132:15
The secret to living happy is giving happiness. Have a wonderful day. localhost:3000:133:15
Uncaught TypeError: c is null
addEvt http://localhost:3000/assets/js/app-2.5.4.min.js line 8 > srcScript:30
jb http://localhost:3000/assets/js/app-2.5.4.min.js line 8 > srcScript:44
Start http://localhost:3000/assets/js/app-2.5.4.min.js line 8 > srcScript:51
onload http://localhost:3000/assets/js/app-2.5.4.min.js line 8 > srcScript:9
EventHandlerNonNull* http://localhost:3000/assets/js/app-2.5.4.min.js line 8 > srcScript:9
app-2.5.4.min.js line 8 > srcScript:30:282
Uncaught TypeError: nightMode is null
changeSkin http://localhost:3000/assets/js/darkmode.js:2
EventListener.handleEvent* http://localhost:3000/assets/js/darkmode.js:1
darkmode.js:2:247
Attempting the same page load with Chrome does not exhibit this issue.
There does not appear to be a 'mode' cookie that would indicate a previous detection of dark mode. The 'matchMedia' handling in the <head> script does not appear to fail, but later reference to the darkmode element prevents further page load (and results in no interface presented in Firefox).