Rich text from LibreOffice Calc is sent as screenshots

[dca00]

Describe the bug

Pasting content from LibreOffice Calc results in it being immediately sent as a screenshot.

To Reproduce
Steps to reproduce the behavior:

1. Copy cells from LibreOffice Calc
2. Paste into a new IM
3. See it being sent immediately

Expected behavior

Rich text from Calc should be pasted into a new message, for editing and sending whenever the user wants

Screenshots

Environment (please complete the following information):

• Desktop
• Browser Firefox]
• Converse.js version [e.g. 12.0.0]

Additional context

Both usability and security is compromised by this issue

[jcbrand]

Use the Paste as plain text option to paste text.

[dca00]

Even if such option exists on your system, it is not available to any of our Windows or Linux users of Firefox that is our only approved browser.

Remember that not everyone is same as you. If your app is intended only for a specific browser, than this is another reason not to use it.

[jcbrand]

In Firefox you can hold "Shift" while you paste to paste as plain text.

If your app is intended only for a specific browser, than this is another reason not to use it.

Stop with these barbs. If you don't like Converse, or me, then go away and use something else.

[jcbrand]

In Firefox you can hold "Shift" while you paste to paste as plain text.

Looks like this no longer works. I'll reopen the ticket and see if we can get a solution for Firefox