Steps to reproduce the issue

Settings:
1) Superadmin "No Filter"
2) TinyMCE - Joomla! Textfilter Settings: YES

Try to add <span class="fa fa-phone fa-3x sr-contact“></span> <p>123-456-6789</p>
 in a module.

Expected result

The code should be accepted.

Actual result

The code is stripped out.

Steps to reproduce the issue

Settings:
1) TinyMCE - Joomla! Textfilter Settings: NO
Allowed elements: class, span

Try to add <span class="fa fa-phone fa-3x sr-contact“></span> <p>123-456-6789</p>
 in a module.

Expected result

The code should be accepted.

Actual result

The code is stripped out.