IE 8 and above only supports image data URIs within CSS, link and image tags[0]. Processing.js probably works around that with Canvas or something.<p>[0]<a href="https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;HTTP&#x2F;data_URIs" rel="nofollow">https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;HTTP&#x2F;data_URIs</a>