There are already a few extensions which use this API. Way faster, and more easily maintined code,- plus the more people use the declarativeWebRequest API, the more likely, that it will stay.
@b21e, the users of this tool do not have the beta or dev version of Chrome, so this API will not yet work. If and when it is included in the main API, I will look into using it. Closing this ticket.
There are already a few extensions which use this API. Way faster, and more easily maintined code,- plus the more people use the declarativeWebRequest API, the more likely, that it will stay.