Unable to preview body of encrypted mail in mailvelope reply-to

[Niveshkrishna]

Describe the bug

When replying to an encrypted email in webmail using mailvelope, the original email body doesn't show in the mailvelope reply to window. Issue is similar to #1126

To Reproduce
Steps to reproduce the behavior:

1. Go to snappymail
2. Click on reply to for an encrypted email
3. Use mailvelope extension to reply
4. No body of original message to preview

Expected behavior
A clear and concise description of what you expected to happen.

Show body of original message

Screenshots
If applicable, add screenshots to help explain your problem.

Please complete the following information:

• Browser: [e.g. chromium 100, firefox 100, safari 14, mobile]
• IMAP daemon: [e.g. courier, dovecot]
• PHP version:
• SnappyMail Version: 2.27.2
• Mode: [e.g. standalone, nextcloud, cyberpanel, docker] : nextcloud

Debug/logging information
Place them here (few lines) or as attachments (many lines)

Additional context
Add any other context about the problem here.

[the-djmaze]

The mailvelope.createDisplayContainer() returns a DisplayContainer object that does not reveal the decrypted text.
Therefore SnappyMail can't access the code on reply/forward.

See:
https://mailvelope.github.io/mailvelope/Mailvelope.html#createDisplayContainer
https://mailvelope.github.io/mailvelope/global.html#DisplayContainer

[Niveshkrishna]

@the-djmaze Are you sure about this? When I tried with gmail + mailvelope, there's a secure reply option shows the original message in the popup body. Here's a screenshot if it helps