Upgrade mathjax

[gnestor]

@takluyver @minrk

[gnestor]

It looks like there's an official MathJax package:

$ bower lookup MathJax
MathJax https://github.com/mathjax/MathJax.git
grant:notebook grant$ bower info MathJax
bower cached        https://github.com/mathjax/MathJax.git#2.7.4
bower validate      2.7.4 against https://github.com/mathjax/MathJax.git#*

{
  name: 'MathJax',
  main: './MathJax.js',
  homepage: 'http://www.mathjax.org/',
  ignore: [
    '**/.*',
    'node_modules',
    'components'
  ],
  keywords: [
    'math',
    'js',
    'LaTeX',
    'MathML',
    'AsciiMath'
  ],
  version: '2.7.4'
}

Available versions:
  - 2.7.4
  - 2.7.3
  - 2.7.2
  - 2.7.1
  - 2.7.0
  - 2.6.1
  - 2.6.0
  - 2.5.3
  - 2.5.2
  - 2.5.1
  - 2.5.0
  - 2.4.0
  - 2.3.0
  - 2.2.0
  - 2.1.0
  - 2.0.0

Show 8 additional prereleases with ‘bower info MathJax --verbose’
You can request info for a specific version with 'bower info MathJax#<version>'

Does this mean that @minrk doesn't need to maintain components/mathjax? It looks like one difference is that components/mathjax purposefully excludes the image fonts...

[gnestor]

@takluyver I'm getting a strange error when trying to run the notebook against master:

$ jupyter notebook
[W 13:07:55.769 NotebookApp] server_extensions is deprecated, use nbserver_extensions
[I 13:07:55.804 NotebookApp] It looks like you're running the notebook from source.
        If you're working on the Javascript of the notebook, try running
    
        npm run build:watch
    
        in another terminal window to have the system incrementally
        watch and build the notebook's JavaScript for you, as you make changes.
Traceback (most recent call last):
  File "/Users/grant/anaconda/lib/python3.6/site-packages/traitlets/traitlets.py", line 528, in get
    value = obj._trait_values[self.name]
KeyError: 'allow_remote_access'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/grant/Sites/jupyter/notebook/notebook/notebookapp.py", line 856, in _default_allow_remote
    addr = ipaddress.ip_address(self.ip)
  File "/Users/grant/anaconda/lib/python3.6/ipaddress.py", line 54, in ip_address
    address)
ValueError: 'localhost' does not appear to be an IPv4 or IPv6 address

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/grant/anaconda/bin/jupyter-notebook", line 11, in <module>
    load_entry_point('notebook', 'console_scripts', 'jupyter-notebook')()
  File "/Users/grant/anaconda/lib/python3.6/site-packages/jupyter_core/application.py", line 266, in launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "/Users/grant/anaconda/lib/python3.6/site-packages/traitlets/config/application.py", line 657, in launch_instance
    app.initialize(argv)
  File "<decorator-gen-7>", line 2, in initialize
  File "/Users/grant/anaconda/lib/python3.6/site-packages/traitlets/config/application.py", line 87, in catch_config_error
    return method(app, *args, **kwargs)
  File "/Users/grant/Sites/jupyter/notebook/notebook/notebookapp.py", line 1598, in initialize
    self.init_webapp()
  File "/Users/grant/Sites/jupyter/notebook/notebook/notebookapp.py", line 1350, in init_webapp
    self.jinja_environment_options,
  File "/Users/grant/Sites/jupyter/notebook/notebook/notebookapp.py", line 158, in __init__
    default_url, settings_overrides, jinja_env_options)
  File "/Users/grant/Sites/jupyter/notebook/notebook/notebookapp.py", line 256, in init_settings
    allow_remote_access=jupyter_app.allow_remote_access,
  File "/Users/grant/anaconda/lib/python3.6/site-packages/traitlets/traitlets.py", line 556, in __get__
    return self.get(obj, cls)
  File "/Users/grant/anaconda/lib/python3.6/site-packages/traitlets/traitlets.py", line 535, in get
    value = self._validate(obj, dynamic_default())
  File "/Users/grant/Sites/jupyter/notebook/notebook/notebookapp.py", line 863, in _default_allow_remote
    if not ipaddress.ip_address(addr).is_loopback:
  File "/Users/grant/anaconda/lib/python3.6/ipaddress.py", line 54, in ip_address
    address)
ValueError: 'fe80::1%lo0' does not appear to be an IPv4 or IPv6 address

I tested the upgraded mathjax against the 5.5.0 tag and it works.

[takluyver]

Thanks @gnestor, I've tested that.

I think you're running into some issue with #3714. Can I ask that you open a new issue for that and mark it for 5.6 to make sure we investigate promptly? For some reason it seems to be determining that localhost resolves to 'fe80::1%lo0', which isn't a valid IP address.

[minrk]

Indeed we should investigate picking up the official mathjax package, if it works. We can (and maybe do already?) exclude the image fonts in our package_data setup.

[takluyver]

Opened #3755 for further discussion of that.

[gnestor]

Should we do a patch release? 5.5.1? Or just wait for 5.6.0?

[takluyver]

We were on the cusp of releasing 5.6 anyway, so let's just do that.