I have a TinyMCE editor on my page. Content added to the editor:
jfdkl
jfdslk
tinyMCE.activeEditor.getContent({"format":"raw"})
returns this:
"<p>jfdkl</p><p><strong data-mce-bogus="1">jfdslk</strong><br></p>"
Copy that to vim editor:
"<p>jfdkl</p><p><strong data-mce-bogus="1"><200b>jfdslk</strong><br></p>"
The issue is with this extra <200b> string. This inserts a ? character in my MySQL database.