Offline support

[bwiberg]

Hi,

First of all, thank you for a great extension.

I work in an offline environment where I do not have internet access. This causes the extension to fail since it relies on the CDN-hosted Font Awesome. I commented out the following lines:

vscode-reveal/views/head.ejs

Line 17 in 3fa8966

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">

vscode-reveal/index.html

Line 22 in 29b6c41

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">

And that made the extension work.

Looking through the source code it seems like the MathJax library is loaded from a CDN as well:

vscode-reveal/index.html

Line 250 in 29b6c41

mathjax: 'https://cdn.jsdelivr.net/gh/mathjax/mathjax@2.7.8/MathJax.js',

Is this something you're willing to consider adding support for? Two alternatives I can think of are:

1. Bundling the font-awesome.min.css (and MathJax) files (like you already do with the Remark Javascript code)
2. Adding an "offline" option to the plugin, causing external resources to be skipped

[evilz]

Yes sure !
PR could be nice

[bwiberg]

Which of the two alternatives would you prefer? Bundling everything or adding an offline option?

[evilz]

Bundle is nice but is we want to disable some feature. it's not as easy.
So just offline lib to start is enaught I guest