Why Don't My Merged SVGs Scale Correctly in Internet Explorer, and How Can I Fix It?

SVGs Not Scaling Properly in IE

The Problem

When merging multiple SVGs into a single SVG for responsiveness, IE fails to scale the combined SVG correctly.

IE Scaling Issue

IE exhibits a bug where it doesn't properly scale SVGs unless both the width and height attributes are specified.

The Canvas Trick

To rectify this issue, you can utilize a technique involving a element. IE accurately scales elements, so placing a with the same aspect ratio as the SVG will force the SVG to scale correctly.

<div>

canvas {
    display: block;
    width: 100%;
    visibility: hidden;
}

svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

This trick ensures that the SVG scales proportionally to its container, resolving the scaling issue in IE.

Alternative Solution

While the canvas trick effectively addresses the scaling issue in IE, there are other approaches to achieving responsive SVG images:

• Inline SVGs: Directly include the SVG code within the HTML without creating external files. This method eliminates the need for merges and improves performance.
• CSS Shapes: Use CSS shape-outside and clip-path properties to apply SVG shapes to other elements. This approach is particularly useful for creating complex and responsive shapes.
• SVG Mediatypes: Define multiple SVGs with different resolutions and use CSS media queries to load the appropriate one based on the viewport width. This ensures optimal display across devices.

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