Add ignoredURLS option

Author: Zack Bloom

pace.coffee

@@ -67,6 +67,9 @@ defaultOptions =
     # Should we track web socket connections?
     trackWebSockets: false
 
+    # A list of regular expressions or substrings of URLS we should ignore (for both tracking and restarting)
+    ignoreURLs: []
+
 now = ->
   performance?.now?() ? +new Date
 
@@ -362,12 +365,26 @@ getIntercept = ->
     _intercept = new RequestIntercept
   _intercept
 
+shouldIgnoreURL = (url) ->
+  for pattern in options.ajax.ignoreURLs
+    if typeof pattern is 'string'
+      if url.indexOf(pattern) isnt -1
+        return true
+
+    else
+      if pattern.test(url)
+        return true
+
+  return false
+
 # If we want to start the progress bar
 # on every request, we need to hear the request
 # and then inject it into the new ajax monitor
 # start will have created.
 
-getIntercept().on 'request', ({type, request}) ->
+getIntercept().on 'request', ({type, request, url}) ->
+  return if shouldIgnoreURL(url)
+
   if not Pace.running and (options.restartOnRequestAfter isnt false or shouldTrack(type) is 'force')
     args = arguments
 
@@ -396,7 +413,9 @@ class AjaxMonitor
 
     getIntercept().on 'request', => @watch arguments...
 
-  watch: ({type, request}) ->
+  watch: ({type, request, url}) ->
+    return if shouldIgnoreURL(url)
+
     if type is 'socket'
       tracker = new SocketRequestTracker(request)
     else
@@ -685,7 +704,7 @@ Pace.go = ->
         Pace.running = false
 
         Pace.trigger 'hide'
-      , Math.max(options.ghostTime, Math.min(options.minTime, now() - start))
+      , Math.max(options.ghostTime, Math.max(options.minTime - (now() - start), 0))
     else
       enqueueNextFrame()