Mobile Safari SVG Problem

Add xmlns="http://www.w3.org/2000/svg" version="1.1" to your svg tag.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/html1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-us">
  <head>
    <title>SVG iPhone Test</title>
  </head>
<body >
      <svg width="500" height="220" xmlns="http://www.w3.org/2000/svg" version="1.1">
        <rect x="2" y="2" width="496" height="216" stroke="#000" stroke-width="2px" fill="transparent"></rect>
      </svg>


</body>
</html>

The HTTP MIME type being delivered by http://www.invalidpage.com/svg/svgtest.html is "Content-Type: text/html". HTML inline svg works with the MIME type "Content-Type: text/xml" You can create this by ending the document with XML instead of HTML as they have done here.

Not sure if Ipad cares about the Content-Type but other browsers do.

Updated

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

Can also be used; It is what is being shown on the Ipad svg examples. When the document is delivering as an XML not HTML, it should start with <xml version="1.0" standalone="no">;

<?xml version="1.0" standalone="no"?>

<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">


      <svg width="500" height="220" xmlns="http://www.w3.org/2000/svg" version="1.1">
        <rect x="2" y="2" width="496" height="216" stroke="#000" stroke-width="2px" fill="transparent"></rect>
      </svg>

Figured I would tack this on here, though it's mostly just related to the title.

I had my SVG tag rendering everything properly in every browser (even IE9+), except for iOS. I had the css height of the svg set to 100%, which worked everywhere, but on iOS it appeared to be 100% of the height of the entire page, instead of just its parent element! This was causing my inner SVG elements to render outside of their viewport.

Adding a position: absolute to the svg tag fixed my issue and it rendered properly on iOS and everywhere else (the parent element was already positioned, so this didn't change the actual position of the svg). Other position styles may also work.