aninimus

I recently read a chapter of David Herman's Effective JavaScript[1] that talked about preserving the async contract even if you cache results (ie. can return without an async call from the caller). Try:

    if (connectionInstance) { 
      setTimeout(function(){callback(connectionInstance)}, 0); 
      return;
    }

That way your async functions will always behave the same way.

[1] http://effectivejs.com/

It looks awesome, kudos! Just a quick question, are there any plans to support node.js / Express? :)

You should update "Log" tab with "Scan Queued ETA: X" and/or "Scan Started". How long should it take to start scanning?

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