show_context:true causing SyntaxError

[Bubblbu]

Checked out the recent master/contextualize_visualization branch and I am getting this error in the local_files example. As soon as I set show_context:false it works.

Uncaught SyntaxError: Unexpected token o in JSON at position 1
    at JSON.parse (<anonymous>)
    at Object.init_start_visualization (eval at <anonymous> (headstart.js:84), <anonymous>:258:57)
    at Channel.publish (eval at <anonymous> (headstart.js:108), <anonymous>:232:23)
    at Mediator.publish (eval at <anonymous> (headstart.js:108), <anonymous>:360:13)
    at MyMediator.publish (eval at <anonymous> (headstart.js:84), <anonymous>:196:45)
    at eval (eval at <anonymous> (headstart.js:60), <anonymous>:102:28)
    at eval (eval at <anonymous> (headstart.js:336), <anonymous>:31:13)
    at eval (eval at <anonymous> (headstart.js:72), <anonymous>:2011:7)
    at Object.eval (eval at <anonymous> (headstart.js:72), <anonymous>:1996:9)
    at Object.event (eval at <anonymous> (headstart.js:72), <anonymous>:504:42)
init_start_visualization @ mediator.js?3a6e:224
Channel.publish @ mediator.js?66ff:232
Mediator.publish @ mediator.js?66ff:360
publish @ mediator.js?3a6e:162
(anonymous) @ headstart.js?9f22:93
(anonymous) @ io.js?ab02:19
(anonymous) @ d3.js?8d8f:2011
(anonymous) @ d3.js?8d8f:1996
event @ d3.js?8d8f:504
respond @ d3.js?8d8f:1949
XMLHttpRequest.send (async)
xhr.send @ d3.js?8d8f:1999
xhr.(anonymous function) @ d3.js?8d8f:1985
d3_xhr @ d3.js?8d8f:2007
dsv @ d3.js?8d8f:2022
async_get_data @ io.js?ab02:18
call @ mediator.js?3a6e:29
io_async_get_data @ mediator.js?3a6e:169
Channel.publish @ mediator.js?66ff:232
Mediator.publish @ mediator.js?66ff:360
publish @ mediator.js?3a6e:162
local_files @ headstart.js?9f22:101
onstart @ headstart.js?9f22:128
doCallback @ state-machine.js?1f0d:100
afterThisEvent @ state-machine.js?1f0d:115
afterEvent @ state-machine.js?1f0d:126
transition @ state-machine.js?1f0d:174
(anonymous) @ state-machine.js?1f0d:192
start @ app.js?d55c:15
(anonymous) @ (index):15

[pkraker]

Set the default value in local_files to false for now