Jetpack: Dashboard: Not Displaying in IE 11

[tmmbecker]

In 2035678-zen, the user reports that the Jetpack dashboard is blank in IE 11. I am able to replicate.

This user is blind and uses the Dolphin Supanova screen reader, which only fully works in IE.

Per the customer:

currently Dolphin are working on Chrome to try making it work there and so far it is about 50% working so unfortunately currently I can only work with IE.

There are no issues with Edge but the Dolphin Supanova doesn't work with that either.

There is a known issue with IE 11 in that the developer tools cause the tab to freeze - I've tried this many times now - so I'm not able to check the console for any errors.

Steps to reproduce the issue

1. Open IE 11
2. Go to Jetpack → Dashboard on a site with a Pro plan
3. Note that no information is displayed

What I expected

I should see the full Jetpack dashboard.

What happened instead

No information

Screenshots

[kraftbj]

~@tmmbecker If you still have the IE11 box setup, can you check the console log for any errors and post them here?~ Just read the entire report. Sorry! 😬

[kbrown9]

I can confirm this issue in IE11 without a Pro plan. Luckily, developer tools didn't cause any problems for me! I saw this error in the console log:

SCRIPT1010: Expected identifier
File: admin.js, Line: 1, Column: 199710

Column 199710 is at the rest parameter ... in this statement:
t.log=function(...e)

And, it looks like the ES6 rest parameter isn't supported by IE11; see this ECMAScript 6 Compatibility Table.

I hope this is useful!