IE Compatability about character-sheet-dnd5 HOT 2 OPEN

Here are my repro steps on the live instance; haven't had a chance to grab the code and try to set up my own.

• Initially, loading up https://character-sheet-dnd5.appspot.com/ in Internet Explorer 11 (11.0.9600.17501 actually) results in the "Authorize," "Undo" and "Redo" buttons being greyed out and unclickable.
• I closed IE, then opened it back up to my homepage; fired up the F12 Developer Tools and clicked over to the Debugger, then browsed to https://character-sheet-dnd5.appspot.com/. Now the Authorize button loaded up to a clickable state successfully! (I have a hunch this involves a situation similar to http://stackoverflow.com/questions/7742781/why-javascript-only-works-after-opening-developer-tools-in-ie-once)
• I authorized and logged in successfully, then clicked "Create."
  • This results in a debug break with Access Denied on Line 153 "k.open(d,b,!l)"
  • But it does appear a "New Character" document got added to my Google Drive.
• I closed the browser, opened it back up, fired up F12 Developer Tools, and browsed to the character-sheet app again, this time clicking the "Open" button.
  • The "Select a File" dialog loaded successfully, and I selected an existing character and clicked Select.
  • This results in the same debug break with Access Denied on Line 153 "k.open(d,b,!l)"

from character-sheet-dnd5.

I've removed all console calls and updated the app. I'm not sure what's causing the access denied error though.

from character-sheet-dnd5.