Backend - Some seemingly normal HTML course content is not readable with TalkBack


Ticket to look at:

With a current Android phone, start TalkBack.
Go to

The main issue is that the contents of the Webview (for this and apparently all other “book” icon course units) are not read by TalkBack.

The same content is readable using TalkBack on Chrome on the same Android phone, and with VoiceOver on iPad, and VoiceOver on Mac OS.

You will note that the contents of the page (the webview) is readable for some units (such as 2.3.5) but not for others (such as 2.3.7, 2.3.8)

These parts of the unit content seem to be common either way:

WAI01x courseware edx. Webview
Skip to main content, link.
Content. Main.

And then we have the issue: Some of the units read more content after 'Content. Main.' and some don't. So for some units, effectively all of the contents are unreadable. The surrounding navigation controls (outside the webview) are still there though.

I note that for some units there seems to be a Skip to Main Content link, and for some units there is not. I don't know if this is related to the main issue, but it seems interesting because it isn't in the main web view.

I investigated a theory that this might be due to the fact that some units have inline styles in the HTML. Temporarily removing the styles didn't seem to make a difference, but I'm not sure if it was a solid test because I don't know how edX's caching works.

This is a bug report from a low-vision learner who is an educator in Ghana. The course is obviously accessibility-related, so this issue will get the course creators' full attention.

Epic Link



Jawad Khan
March 12, 2021, 8:13 AM

I shared PR with Jeff to keep him in loop with which solution I implemented so he can test it. I’ll share it today after testing.

Colin Brash
March 11, 2021, 4:00 PM

please make sure you loop in #tnl-squad, I expect someone from that team will want to review the changes. Thanks!

Jawad Khan
March 11, 2021, 2:46 PM

I implemented first approach suggested by you and it worked. I have created a PR and assigned you a reviewer.

Mian Khalid
March 4, 2021, 10:46 AM

Changed the title to indicate that its a backend ticket now.

Jawad Khan
March 1, 2021, 4:18 PM

yes we can pick this.




Jawad Khan

Fix versions



Story Points



Jeff Witt



Platform Area

Learner Experience - Mobile App: Course Content