Sidebar (Menu) behaviour issue

[mhcpan]

Problem in Sidebar (Menu) show/hide with Android device

When browse mkdocs-material powered sites in Android device, menu will be shown when Back button is pressed.

Expected behavior

It is expected previous page should be shown without menu(sidebar).

Actual behavior

Menu/sidebar show up

Steps to reproduce the bug

1. Open https://squidfunk.github.io/mkdocs-material/ with Android device
2. Click Menu button at top left corner to show menu
3. Select "Release" section
4. Press "Back" button of Android device, previous page with Menu show up

If we check Google Matrial, menu won't be displayed if Back button is pressed.

System information

• OS: Android 6/7/8
• Browser: Chrome/Dolphin

[squidfunk]

That's indeed a bug related to the way some browsers handle form field history, as the sidebar is implemented using the checkbox hack so it works without JavaScript. A possible fix would be to unset the field upon page load no matter if it is set or not. However, that will only work if JavaScript is available and there might be a slight flash (page loads, menu is open, menu closes).

[mhcpan]

Thanks for the info. Is it possible to include a configuration flag to allow "unset" the field?

[squidfunk]

Theoretically yes, but it's probably better if I included the JavaScript-based fix in the code base anyway.

[squidfunk]

autocomplete=off actually does the trick, will provide a fix.

[squidfunk]

Fix released as part of 2.7.1

[philmarc]

Just FYI, according to W3C, autocomplete=off is not allowed on type="checkbox"

Attribute autocomplete is only allowed when the input type is color, date, datetime-local, email, hidden, month, number, password, range, search, tel, text, time, url, or week.

[squidfunk]

Thanks for the FYI - you're absolutely correct. Is there some other option with the same effect? The bug is quite annoying so unless there's a workaround I think it's the best solution.