SVG Linear gradient doesn't work in Safari

Question

I've got an SVG object that contains a linear gradient embedded directly in a document. It works fine in Chrome and Firefox, but in Safari nothing is rendered. If I create the SVG as a file and embed it using the Object tag, it works fine in Safari. Other shapes and fills work, it's just linear gradient that doesn't work. I guess I could use the object, but I'd prefer to embed the SVG directly.

I've create a demo here (works in Chrome, not Safari): http://jsfiddle.net/sjKbN/

I came across this answer which suggests setting the content type to application/xhtml+xml, but this in itself seems to cause other problems.

Just wondering if anyone had come across any other fixes or ideas to get this working.

Solution 1

Your gradient will work in Safari if you wrap a defs tag around it:

<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
     width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
 <defs>
<linearGradient id="SVGID_1_" gradientUnits="userSpaceOnUse" x1="5.6665" y1="149.5" x2="293.333" y2="149.5">
    <stop  offset="0" style="stop-color:#FFF33B"/>
    <stop  offset="0.0595" style="stop-color:#FFE029"/>
    <stop  offset="0.1303" style="stop-color:#FFD218"/>
    <stop  offset="0.2032" style="stop-color:#FEC90F"/>
    <stop  offset="0.2809" style="stop-color:#FDC70C"/>
    <stop  offset="0.6685" style="stop-color:#F3903F"/>
    <stop  offset="0.8876" style="stop-color:#ED683C"/>
    <stop  offset="1" style="stop-color:#E93E3A"/>
</linearGradient>
</defs>
<rect x="5.667" y="5.333" fill="url(#SVGID_1_)" width="287.667" height="288.333"/>
</svg>

​It seems that wrapping your references in defs is encouraged but not obligatory according to spec. So this is a bug in Safari.

Solution 2

About Alpha : It seems that Safari (7 at this moment) does not cover SVG color alpha channel, use stop opacity attribute. it works fine!

<stop stop-color="rgba(x,y,z,0.5)"> //safari does not work
<stop stop-color="rgb(x,y,z)" stop-opacity="0.5"> //ok

Solution 3

The accepted answer was not the solution for me.

My problem was the presence of a <base href="/" /> tag in my index file. Simply removing it solved the problem for me.

If you cannot remove it, probably some workaround already exist: found this gist but I did not tested it.

Update

Simply removing the href broke the child routing of my angular app, the proper workaround is to prepend to the linearGradient id with the page relative location. I wrapped the logic in a method like this:

get svgFill(): string {
  return `url(${this.location.path()}#${this.gradientId}) white`;
}

Solution 4

The answer is simple, all id's (not only <linear gradient>) need to be UNIQUE for all SVG files.

View more solutions

Comments

[Christian]

I wish I could give more upvotes for this answer, this is perfect. Thanks!

[Robert Longson]

The code in the question does not use rgba colours, so it's not an answer to this particular question.

[Sebastien]

Wrong Sir Longson! First searching for the defect on linear gradient that did not work as same in safari than other browser, I saw this post first. Second, The topic is related to the safari different behaviour of linear gradient. Alpha channel is a part of this global topic :"SVG Linear gradient doesn't work in Safari"

[oabarca]

@Sebastien, great answer. It is definitely relevant to have it here! Thank you

[DragonKnight]

Perfect! you saved my acc :')). here is my code: {offset: "100%", color: "rgb(130,130,130)", opacity:"0"} for data and .attr("stop-opacity", function(d) { return d.opacity; }); when you append stop. Cheers.

[sebap]

still a problem with url using <base href="/" />

[OfekA]

You can use: window.location.pathname as the prefix. Example: url(${window.location.pathname}#${this.gradientId}) white

[blahdiblah]

@OfekA That will break if there are query parameters: http://example.com/page.html?arg=val