HTML5 and CSS3: Building Responsive Websites

Time for action – patch Internet Explorer with polyfills

Perform the steps to patch Internet Explorer with polyfills:

1. We have a number of polyfills in the scripts folder namely html5shiv.js, respond.js, and placeholder.js. Let's combine these scripts into a single file.
2. First, create a new JavaScript file named polyfills.js that will hold the content of those polyfill scripts.
3. Open polyfills.js in Sublime Text.
4. Add the following lines to import the polyfill scripts:

   // @koala-prepend "html5shiv.js"
   // @koala-prepend "respond.js"
   // @koala-prepend "placeholder.js"

   Note

   The @koala-prepend directive is the Koala proprietary directive to import JavaScript files. Read more about it in the Koala documentation page at https://github.com/oklai/koala/wiki/JS-CSS-minify-and-combine ...