Uncaught SyntaxError: Unexpected end of JSON input

[Enter steps to reproduce:]

1. ...
2. ...

**Atom**: 1.14.3 x64
**Electron**: 1.3.13
**OS**: Mac OS X 10.12.3
**Thrown From**: [jupyter-notebook](https://github.com/jupyter/atom-notebook) package 0.0.9

### Stack Trace

Uncaught SyntaxError: Unexpected end of JSON input

```
At file:///Applications/Atom.app/Contents/Resources/app.asar/static/index.html#%7B%22initialPaths%22%3A%5B%22%2FUsers%2Fblueskywalker%2Fworkspace%2Fgithub.com%2Fjunkyard%2Feval%2Fpython%22%5D%2C%22locationsToOpen%22%3A%5B%7B%22pathToOpen%22%3A%22%2FUsers%2Fblueskywalker%2Fworkspace%2Fgithub.com%2Fjunkyard%2Feval%2Fpython%22%2C%22initialLine%22%3Anull%2C%22initialColumn%22%3Anull%2C%22forceAddToWindow%22%3Afalse%7D%5D%2C%22windowInitializationScript%22%3A%22%2FApplications%2FAtom.app%2FContents%2FResources%2Fapp.asar%2Fsrc%2Finitialize-application-window.js%22%2C%22resourcePath%22%3A%22%2FApplications%2FAtom.app%2FContents%2FResources%2Fapp.asar%22%2C%22devMode%22%3Afalse%2C%22safeMode%22%3Afalse%2C%22profileStartup%22%3Afalse%2C%22clearWindowState%22%3Afalse%2C%22env%22%3A%7B%22__CF_USER_TEXT_ENCODING%22%3A%220x1F5%3A0x0%3A0x0%22%2C%22TMPDIR%22%3A%22%2Fvar%2Ffolders%2F9q%2F8rdrjdgj0n396_srr25lbn700000gn%2FT%2F%22%2C%22HOME%22%3A%22%2FUsers%2Fblueskywalker%22%2C%22SHELL%22%3A%22%2Fbin%2Fbash%22%2C%22SSH_AUTH_SOCK%22%3A%22%2Fprivate%2Ftmp%2Fcom.apple.launchd.CLvqmFMfxF%2FListeners%22%2C%22Apple_PubSub_Socket_Render%22%3A%22%2Fprivate%2Ftmp%2Fcom.apple.launchd.iFLvwVofBn%2FRender%22%2C%22DISPLAY%22%3A%22%2Fprivate%2Ftmp%2Fcom.apple.launchd.5yuBjknoLJ%2Forg.macosforge.xquartz%3A0%22%2C%22PATH%22%3A%22%2Fusr%2Fbin%3A%2Fbin%3A%2Fusr%2Fsbin%3A%2Fsbin%22%2C%22LOGNAME%22%3A%22blueskywalker%22%2C%22XPC_SERVICE_NAME%22%3A%220%22%2C%22COMMAND_MODE%22%3A%22unix2003%22%2C%22USER%22%3A%22blueskywalker%22%2C%22XPC_FLAGS%22%3A%220x0%22%2C%22GOOGLE_API_KEY%22%3A%22AIzaSyAQfxPJiounkhOjODEO5ZieffeBv6yft2Q%22%2C%22ATOM_HOME%22%3A%22%2FUsers%2Fblueskywalker%2F.atom%22%7D%2C%22appVersion%22%3A%221.14.3%22%2C%22atomHome%22%3A%22%2FUsers%2Fblueskywalker%2F.atom%22%2C%22shellLoadTime%22%3A671%7D:1

SyntaxError: Unexpected end of JSON input
at Object.parse (native)
at NotebookEditor.parseNotebookFile (/packages/jupyter-notebook/lib/notebook-editor.js:243:19)
at NotebookEditor.loadNotebookFile (/packages/jupyter-notebook/lib/notebook-editor.js:217:29)
at /packages/jupyter-notebook/lib/notebook-editor.js:34:12)
at openURI (/packages/jupyter-notebook/lib/main.js:90:80)
at Workspace.module.exports.Workspace.openURIInPane (/app.asar/src/workspace.js:501:22)
at Workspace.module.exports.Workspace.open (/app.asar/src/workspace.js:436:19)
at TreeView.module.exports.TreeView.fileViewEntryClicked (/app.asar/node_modules/tree-view/lib/tree-view.js:486:40)
at TreeView.module.exports.TreeView.entryClicked (/app.asar/node_modules/tree-view/lib/tree-view.js:474:14)
at /app.asar/node_modules/tree-view/lib/tree-view.js:190:26)
at /app.asar/node_modules/jquery/dist/jquery.js:4435:9)
at /app.asar/node_modules/jquery/dist/jquery.js:4121:28)
```

### Commands

```
```

### Non-Core Packages

```
aligner-python 1.0.1
atom-beautify 0.29.17
atom-python-run 0.7.3
autocomplete-haskell 0.7.2
autocomplete-json 5.2.0
autocomplete-python 1.8.57
column-select 0.2.0
environment 1.3.1
git-plus 7.3.2
go-debug 1.0.4
go-plus 5.1.1
go-signature-statusbar 1.2.0
haskell-ghc-mod 1.19.7
hyperclick 0.0.40
jupyter-notebook 0.0.9
kite 0.10.5
language-groovy 0.6.0
language-haskell 1.12.1
language-scala 1.1.8
linter 1.11.23
linter-rubocop 0.5.3
merge-conflicts 1.4.4
node-debugger 1.10.1
platformio-ide-terminal 2.3.0
python-debugger 0.2.0
python-tools 0.6.9
scala-worksheet-plus 0.4.2
script 3.14.1
```

Start with lib/notebook-editor.js, especially parseNotebookFile at line 243 and loadNotebookFile at line 217, then follow the opening path from lib/main.js. Try opening the affected notebook through the Atom tree view and determine the input that triggers the JSON parse error. Done means the notebook opens without the uncaught SyntaxError.

Written by the indexing model from the issue text.