iframe website settings lost when restarting the app

[LeoCal]

iOS device model, version and app version
Model Name: iPhone 6s
Software Version: 14.2
App version: 2020.7 (11)

Home Assistant Core Version
0.117.4

Describe the bug
iframe website settings lost when restarting the app.

To Reproduce

1. Create a web view and add an iframe pointing to a website in need of preserving user settings (in my example I'm using a local installation of Mopidy server with HTTP extension)
2. Change some settings that you'd like to be preserved by the website shown in the iframe
3. Check that the new settings were successfully applied
4. Close iOS HA app companion and open it again
5. Access the view with the iframe and notice how the user settings were lost after app restart

Expected behavior
User settings in the iframe should be preserved (they need to be persisted in the companion app)

Screenshots
N/A

Additional context
Note that when using HA web UI in Safari, settings are correctly preserved after Safari restart

[zacwest]

Can you try enabling 'cross-site tracking' in the Settings app's Home Assistant preferences? If that doesn't work, this is likely not the app stopping something but the webview behaving that way.

[LeoCal]

Hi, Thanks for your reply. I’ve just checked but I couldn’t find the ‘cross-site tracking’ option in the HA app preferences. Could you please detail out the steps to get to that setting? Thanks a lot

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Il giorno 20 dic 2020, alle ore 19:35, Zac West ***@***.***> ha scritto:  Can you try enabling 'cross-site tracking' in the Settings app's Home Assistant preferences? If that doesn't work, this is likely not the app stopping something but the webview behaving that way. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[zacwest]

Not in the HA app, in the system Settings app under Home Assistant. Looks like this:

[LeoCal]

Found it, thanks! However, that didn’t help and when the app is restarted, the settings are lost. What is weird is that opening the same web page with Safari preserves my settings... Thanks

…

Il giorno 20 dic 2020, alle ore 22:36, Zac West ***@***.***> ha scritto:  Not in the HA app, in the system Settings app under Home Assistant. Looks like this: — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.