We use sometimes i tag on Bootstrap themes such as FlexArmor2 for vector icons (e.g. font awesome, GLYPHICONS).
Example of HTML code:
<i class="fa fa-book"></i>
However, because CKEditor removes empty tag, i tag is lost.
Solution1 (recommended):
You can evade this by adding a lower line to CKEditor4 Other configuration option.
protectedSource:[/<i[^>]*><\/i>/g],
Solution2:
You can deal by adding space.
<i class="fa fa-book"> </i>
Reference:
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.