The rest of this post covers the ways to create text and image fallbacks for your SVG. Which means that Raphaël doesn’t help with old mobile browsers, but it does cut down the number of unsupported users significantly. It provides a single JavaScript interface to both SVG and the VML vector graphics supported in Internet Explorer 6-8. Or you could use Raphaël to both draw and manipulate the graphic.
#Keyshape svg callback code
You could convert the SVG to Flash and then rewrite all your interaction code in ActionScript. On the interactive front, your options are limited. You’ll need a graphics language with an interactive DOM. For replacing animated and interactive SVG, a PNG may not do justice. This is what most people think of as an SVG fallback: a PNG or GIF image that represents the same graphic, just with a larger file size and poorer resolution. If the SVG is an icon whose meaning could be expressed by a text label, maybe all you need is to ensure that alt text shows up in its place. If the SVG is an icon whose meaning is clearly expressed by a text label, you may be able to let that icon disappear without compromising the site’s functionality. Here we go! What KIND of fallback do you need?īefore getting into the technical options for implementing fallbacks, it helps to stop and think of what kind of fallback you need: While I’ve covered SVG fallbacks before, it’s been a few years and we figured we could do that subject better justice now. We both covered SVG, yet neither of us SVG fallbacks comprehensively. Amelia and I presented at the same conference together. The guide is written by Amelia Bellamy-Royds and me, Chris Coyier. If you want to give the 95% of users on modern browsers all the benefits of SVG, but still provide a functional experience for the others, you need a fallback plan.
But for most sites, you can’t ignore 1 in 20 potential customers. Some tech-oriented web sites (like this one) can afford to say that they only support modern web browsers. Whatever the reason, approximately 5% of users browsing the web are doing so with web browsers that can’t display SVG - more in the USA (according to caniuse data). Maybe they are stuck on an office computer that hasn’t been updated since the IT guy quit six years ago, maybe they’re using a second-hand refurbished phone they can’t afford to upgrade, or maybe they just don’t understand or don’t care about updating to a new browser. In fact, some people still (literally) don’t get SVG.
And as much as we want to convince you that SVG is for Everybody, SVG isn’t as widely used as we would like. Here at CSS-Tricks, there’s a lot of information telling you how wonderful SVG is.