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[Bug 1965704] [NEW] Allow accessibility CSS aria rules in text and don't strip them out via HTMLpurifier

To: mahara-contributors@xxxxxxxxxxxxxxxxxxx
From: Kristina Hoeppner <1965704@xxxxxxxxxxxxxxxxxx>
Date: Mon, 21 Mar 2022 00:59:38 -0000
Reply-to: Bug 1965704 <1965704@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx

Public bug reported:

Either tinyMCE or HTMLpurifier is stripping out aria rules around icon
visibility when they are added to tinyMCE.

For example, I'd like to be able to use:

Click the 'Edit block' icon &nbsp; <span class="icon icon-pencil-alt
icon-lg left" aria-hidden="true">&nbsp;</span> on the 'Plan' block.

But when saving a text block or instruction field, 'aria-hidden="true"'
is stripped out. Therefore, I can't indicate to screenreaders that they
shouldn't bother with the icon.

** Affects: mahara
     Importance: Medium
         Status: Confirmed


** Tags: accessibility

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https://bugs.launchpad.net/bugs/1965704

Title:
  Allow accessibility CSS aria rules in text and don't strip them out
  via HTMLpurifier

Status in Mahara:
  Confirmed

Bug description:
  Either tinyMCE or HTMLpurifier is stripping out aria rules around icon
  visibility when they are added to tinyMCE.

  For example, I'd like to be able to use:

  Click the 'Edit block' icon &nbsp; <span class="icon icon-pencil-alt
  icon-lg left" aria-hidden="true">&nbsp;</span> on the 'Plan' block.

  But when saving a text block or instruction field, 'aria-
  hidden="true"' is stripped out. Therefore, I can't indicate to
  screenreaders that they shouldn't bother with the icon.

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