This extension will close any previous preview window generated from Escenic Content Studio.This extension removes old Content Studio previews leaving you with the latest only. That way you won't have a million tabs open when previewing your articles
Version history:
Version 0.1 - Initial version removing any tokenized escenic previews of the same type
Version 0.2 - Minor fixes
Version 0.3 - Also covers accessTokens
Version 0.4 - Now also handles urls that do not contain port descriptor