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August 29, 2015 14:03
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| <head> | |
| // If the user has a cookie don't render the critical css to the page | |
| // Ensure it matches the md5 hash of our critical css so we can cache bust | |
| - if cookies[:inline_css_cached] == critical_css_ref | |
| // Instead get the styles from local storage | |
| <script> | |
| var styles = document.createElement('style'), | |
| firstScript = document.getElementsByTagName('script')[0]; | |
| styles.innerHTML = window.localStorage.getItem('critical-ccs-' + {{ critical_css_ref} }); | |
| firstScript.parentNode.insertBefore(styles, firstScript); | |
| </script> | |
| - else | |
| // If the user doesn't have the cookie, render the css to the head as normal | |
| <style id="js-critical-css" data-ref={{ critical_css_ref }}> | |
| // Render our critical css | |
| </style> | |
| </head> | |
| <body> | |
| <div class="footer"> | |
| - if cookies[:inline_css_cached] != critical_css_ref | |
| <script> | |
| // Store the contents of our critical css in LS | |
| window.localStorage.setItem('critical-ccs-' + {{ critical_css_ref }}, document.getElementById('js-critical-css').innerHTML); | |
| // Set the cookie for the next visit | |
| document.cookie = "inline_css_cached:{{ critical_css_ref }};" | |
| </script> | |
| </div> | |
| </body> |
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