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HTML Responsive Images Image Delivery with Srcset and Sizes Using Srcset

Paula Mourad
Paula Mourad
5,154 Points
Posted by Paula Mourad
Paula Mourad
5,154 Points

Is there any relation between picturefill and srcset?

Hey guys,

I'm a little confused here :) I understand that picturefill is a JS script that you add to your html file, in case browsers don't read this feature. What feature are we talking about?

Whenever I use the srcset, do I have to add the picturefill JS script?

Thanks! :)

1 Answer

Manav Misra
Manav Misra
11,778 Points
Manav Misra
Manav Misra
11,778 Points

Picturefill is a 'polyfill' for the srcset attribute. It 'manipulates' non-compliant browsers into following "srcset" via JS.

As you see here: http://caniuse.com/#search=srcset "srcset" may not be 'fully' compatible. So, your site may not display images as you might expect them too if you solely rely on "srcset."

Therefore, if you include picturefill.min.js, you will help to maximize the experience for more users.

Finally, you should also include a standard "src" attribute after "srcset" for those rare situations where a user might be using a non-compliant browser AND have JS disabled, although that's pretty ridiculous in this day and age.