Marionette Issue

frame_nav_title.rb

-> GET session/0c2d8eb9-2803-5041-959c-230ce10c60b6/window
1457750906191	Marionette	TRACE	conn0 -> [0,15,"getWindowHandle",{}]

1457750906193	Marionette	TRACE	conn0 <- [1,15,null,{"value":"7"}]
<- {"value":"7"}
-> GET session/0c2d8eb9-2803-5041-959c-230ce10c60b6/window/handles
1457750906196	Marionette	TRACE	conn0 -> [0,16,"getWindowHandles",{}]
1457750906196	Marionette	TRACE	conn0 <- [1,16,null,["7"]]

-> POST session/0c2d8eb9-2803-5041-959c-230ce10c60b6/frame
   >>> http://127.0.0.1:4444/session/0c2d8eb9-2803-5041-959c-230ce10c60b6/frame | {"id":null}
     > {"Accept"=>"application/json", "Content-Type"=>"application/json; charset=utf-8", "Content-Length"=>"11"}

1457750906198	Marionette	TRACE	conn0 -> [0,17,"switchToFrame",{}]
1457750906301	Marionette	TRACE	conn0 <- [1,17,null,{}]
<- {}

-> POST session/0c2d8eb9-2803-5041-959c-230ce10c60b6/frame
   >>> http://127.0.0.1:4444/session/0c2d8eb9-2803-5041-959c-230ce10c60b6/frame | {"id":{"ELEMENT":"05fa7e7f-bb9b-ed46-b473-e8cda03c7751","element-6066-11e4-a52e-4f735466cecf":"05fa7e7f-bb9b-ed46-b473-e8cda03c7751"}}
     > {"Accept"=>"application/json", "Content-Type"=>"application/json; charset=utf-8", "Content-Length"=>"134"}
1457750906324	Marionette	TRACE	conn0 -> [0,20,"switchToFrame",{"element":"05fa7e7f-bb9b-ed46-b473-e8cda03c7751"}]
1457750906326	Marionette	TRACE	conn0 <- [1,20,null,{}]
<- {}

-> POST session/0c2d8eb9-2803-5041-959c-230ce10c60b6/element
   >>> http://127.0.0.1:4444/session/0c2d8eb9-2803-5041-959c-230ce10c60b6/element | {"using":"css selector","value":"#three"}
     > {"Accept"=>"application/json", "Content-Type"=>"application/json; charset=utf-8", "Content-Length"=>"41"}
1457750906329	Marionette	TRACE	conn0 -> [0,21,"findElement",{"using":"css selector","value":"#three"}]
JavaScript error: chrome://marionette/content/proxy.js, line 228: TypeError: l is undefined
1457750906431	Marionette	TRACE	conn0 <- [1,21,null,{"value":{"element-6066-11e4-a52e-4f735466cecf":"f2338f87-3275-c54e-9f88-85739119fb1e","ELEMENT":"f2338f87-3275-c54e-9f88-85739119fb1e"}}]
<- {"value":{"element-6066-11e4-a52e-4f735466cecf":"f2338f87-3275-c54e-9f88-85739119fb1e"}}

-> POST session/0c2d8eb9-2803-5041-959c-230ce10c60b6/frame
   >>> http://127.0.0.1:4444/session/0c2d8eb9-2803-5041-959c-230ce10c60b6/frame | {"id":{"ELEMENT":"f2338f87-3275-c54e-9f88-85739119fb1e","element-6066-11e4-a52e-4f735466cecf":"f2338f87-3275-c54e-9f88-85739119fb1e"}}
     > {"Accept"=>"application/json", "Content-Type"=>"application/json; charset=utf-8", "Content-Length"=>"134"}
1457750906440	Marionette	TRACE	conn0 -> [0,23,"switchToFrame",{"element":"f2338f87-3275-c54e-9f88-85739119fb1e"}]
1457750906442	Marionette	TRACE	conn0 <- [1,23,null,{}]
<- {}

-> POST session/0c2d8eb9-2803-5041-959c-230ce10c60b6/element
   >>> http://127.0.0.1:4444/session/0c2d8eb9-2803-5041-959c-230ce10c60b6/element | {"using":"css selector","value":"#four"}
     > {"Accept"=>"application/json", "Content-Type"=>"application/json; charset=utf-8", "Content-Length"=>"40"}
1457750906444	Marionette	TRACE	conn0 -> [0,24,"findElement",{"using":"css selector","value":"#four"}]
JavaScript error: chrome://marionette/content/proxy.js, line 228: TypeError: l is undefined
1457750906548	Marionette	TRACE	conn0 <- [1,24,null,{"value":{"element-6066-11e4-a52e-4f735466cecf":"a72570d3-4020-424f-9b71-672d90b1c28e","ELEMENT":"a72570d3-4020-424f-9b71-672d90b1c28e"}}]
<- {"value":{"element-6066-11e4-a52e-4f735466cecf":"a72570d3-4020-424f-9b71-672d90b1c28e"}}

-> POST session/0c2d8eb9-2803-5041-959c-230ce10c60b6/element/a72570d3-4020-424f-9b71-672d90b1c28e/click
1457750906568	Marionette	TRACE	conn0 -> [0,27,"clickElement",{"id":"a72570d3-4020-424f-9b71-672d90b1c28e"}]
1457750906587	Marionette	TRACE	conn0 <- [1,27,null,{}]
<- {}
-> GET session/0c2d8eb9-2803-5041-959c-230ce10c60b6/title
1457750908512	Marionette	TRACE	conn0 -> [0,28,"getTitle",{}]
1457750908517	Marionette	TRACE	conn0 <- [1,28,null,{"value":""}]
<- {"value":""}