WYSIWYG field traps Tab when using keyboard

[fiinix]

Environment

Statamic version: 3.0.0.-beta-35
PHP version: 7.3.19
Install method (choose one):

• Fresh install from statamic/statamic

Steps to reproduce

1. When using Assistive Technology on a page to create a new entry (e.g. https://domanin.com/cp/collections/news/entries/create/default)
2. Use [Tab] key to navigate to Page intro WYSIWYG field
3. Use [Tab] key one (1) more time

Expected Result

Focus to move to the next field, allowing the user to browse to all available fields on the editing page.

Actual Result

Using [Tab] key creates a Tab-space in the WYSIWYG field, trapping users in this field.

Example or proof

n/a

WCAG 2.1 failure(s)

Please note, WCAG references are guidance and comprehensive testing ought to be conducted by a dedicated auditing company.

• https://www.w3.org/TR/WCAG21/#keyboard-no-exception

Severity/Priority

This is a critical, systemic issue.

[jackmcdade]

How would you tab indent content without being able to use the tab key in a content field?

[fiinix]

There is no such thing as a tab indent in HTML. Whilst I would understand being able to use the [Tab] key to create a subordinate list inside a list item (using Markdown for example), this isn't a feature you appear to support.

Why do you need to preserve tab indentations?

[jaygeorge]

I'd also noticed this problem. I'd just like to point out that in Chrome you can hit ctrl + tab to escape the box, but this does not work in Firefox (untested in Safari).