[TYPO3-RTE] RTE removes span-tags after saving

[Victor Livakovsky]

>> The problem is, when I'm using non-default text styles in RTE (which
>> are inserted with span-tags), they aren't saved into DB.

> in general this is due of missig configuration for allowed tags.
> The same happens for example for object, param and embed if they are not
> in allowed tags


But "Typical configuration" have span in "allowTags". Anyway, I tried
to insert configuration, you've provided, but it also was helpless.

The main problem is, that span is stripped, when it's using
non-default class.

F.e., from this: <p>Lorem <span class="important">ipsum</span> dolor</p>
span-tag will not be removed after saving with my configuration.
But from this: <p>Lorem <span class="red">ipsum</span> dolor</p>
it will.
Same with this <p>Lorem <span>ipsum</span> dolor</p>