Firefox error: Uncaught (in promise) TypeError: can't access property

[dethknite 37]

Emby v4.9.0.30 beta

Firefox Developer v132.0b7 (64-bit)  /  Firefox v131.0.3 (64-bit)

 

You may already be aware, when trying to navigate to the Emby address, it hangs. (Works fine in Chrome /  Edge)

 

From the Dev Console:

Uncaught (in promise) TypeError: can't access property "brands", navigator.userAgentData is undefined
    getDeviceName https://192.168.1.11:8920/web/modules/apphost.js?v=4.9.0.30:1
    init https://192.168.1.11:8920/web/modules/apphost.js?v=4.9.0.30:1
    promise callback*init https://192.168.1.11:8920/web/modules/apphost.js?v=4.9.0.30:1
    loadServiceLocator https://192.168.1.11:8920/web/app.js?v=4.9.0.30:1
    promise callback*loadServiceLocator/< https://192.168.1.11:8920/web/app.js?v=4.9.0.30:1
    promise callback*loadServiceLocator https://192.168.1.11:8920/web/app.js?v=4.9.0.30:1
    promise callback*start https://192.168.1.11:8920/web/app.js?v=4.9.0.30:1
    <anonymous> https://192.168.1.11:8920/web/app.js?v=4.9.0.30:1
    <anonymous> https://192.168.1.11:8920/web/app.js?v=4.9.0.30:1
apphost.js:1:2675

[Luke 40096]

Hi, does this only occur over https?

[dethknite 37]

No. I just tried connecting http:// as well and the same error is in the console.

 

-- some of the leading up to it code --

defining from importMap: appRouter: ./modules/approuter.js app.js:1:11766

defining from importMap: actionsheet: ./modules/actionsheet/actionsheet.js app.js:1:11766

defining from importMap: multi-download: ./modules/multidownload.js app.js:1:11766

defining from importMap: localassetmanager: ./modules/localdatabase/localassetmanager.js app.js:1:11766

defining from importMap: inputManager: ./modules/common/inputmanager.js app.js:1:11766

loadSecondLevelPolyfills app.js:1:44141

loadThirdLevelPolyfills app.js:1:41031

loadServiceLocator app.js:1:7459

loadServiceLocator - inner load 1 app.js:1:7638

loadServiceLocator - inner load 2 app.js:1:8318

loadServiceLocator - calling serviceLocator.initialize app.js:1:8929

loadServiceLocator - calling appHost.init app.js:1:9330

Uncaught (in promise) TypeError: can't access property "brands", navigator.userAgentData is undefined

    getDeviceName http://192.168.1.11:8096/web/modules/apphost.js?v=4.9.0.30:1

    init http://192.168.1.11:8096/web/modules/apphost.js?v=4.9.0.30:1

apphost.js:1:2675

 

-----

Perhaps a plugin.. I will attempt to disable and see how that fares..

Edited October 15, 2024 by dethknite

[Luke 40096]

Strange. I don't it in firefox 132 b7. We'll investigate though. Thanks.

[Happy2Play 9445]

Not seeing any errors in 133

[dethknite 37]

Removed plugins and still hitting it..  seems the navigator object is not defined for some reason when it gets to the code.

 

Edited October 15, 2024 by dethknite

[dethknite 37]

Figured it out.. the Firefox plugin "Container Tab Groups" causes the issue...

[dethknite 37]

* Further fix to allow the addon:

Need to go into extensions, and select Modify on "Container Tab Groups" addon. Then go to Options, Languages and User Agents, and Check "Per-container User-Agent Overrides", and set whatever container Emby will load in as "Chrome" for the user agent.  (Default, Custom -- with valid Mozilla UA, and others do not work -- apparently only faking Chrome UA works in the addon)