Uncaught NotFoundError: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.
Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'.
Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'.
Unknown OSC code: "1"
Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'.
Unknown OSC code: "133"
Unknown OSC code: "1337"
Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'.
Unknown OSC code: "133"
Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'.
Unknown OSC code: "133"
Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'.
Unknown OSC code: "133"
Uncaught TypeError: Failed to execute 'removeChild' on 'Node': parameter 1 is not of type 'Node'.
Open Hyper.app and type the following:
cd..
You will get a blank white screen.
Oh wow... Can reproduce.
I recorded the symptom here: http://recordit.co/z5IgNy5KgR

I just noticed that is actually no related with the "cd", it seems to be related with two dots ".." after any character or word.
Example:
...
d..
bagre..
It happens the same with cd ..ll
Got the WSOD when typed 写写 instead of ll (in Russian layout). Exceptions are similar

URL handling has been vastly improved on 1.0.1! Thanks for the reports 馃檹
Most helpful comment
I just noticed that is actually no related with the "cd", it seems to be related with two dots ".." after any character or word.
Example:
...
d..
bagre..