My web application is similar to StackOverflow in that different users often edit the same text.
Currently, we only support plain text, and therefore it is easy to show users how the text has changed between changes.
I want to support rich text in these fields, but my users are not technical, so markup of any type is not an option.
Are there rich javascript-based text editors that support differences? Ideally, the differences will also be in rich text, but if necessary they can be displayed in markdowns or the like (I would like to avoid raw HTML at all costs).
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