Linking a SVG image in markdown: error

[aleclerc7]

Hello,

Linking a SVG image in markdown is not working:

[![](image.svg)](https/external/link)

This lead to an error:

/config/www/user/plugins/external_links/classes/ExternalLinks.php
Arguments
"Trying to access array offset on value of type bool"

Code (line 294):

        $width = 0;
        $height = 0;

        // Determine image dimensions based on "src" atrribute
        if ($imgNode->hasAttribute('src')) {
            $src = $imgNode->getAttribute('src');

            // Simple check if the URL is internal i.e. check if path exists
            $path = $_SERVER['DOCUMENT_ROOT'] . $src;
            if (realpath($path) && is_file($path)) {
                $size = @getimagesize($path);
            } else {
                // The URL is external; try to load it (default: 32 KB)
                $size = $this->getRemoteImageSize($src, $limit * 1024);
            }
        }

        // Read out width and height from <img> attributes
        $width = $imgNode->hasAttribute('width') ?
            $imgNode->getAttribute('width')  : $size[0];  <<<<<<<<<<<<<<<<<< ERROR
        $height = $imgNode->hasAttribute('height') ?
            $imgNode->getAttribute('height')  : $size[1];

        // Get width and height from style attribute
        if ( $imgNode->hasAttribute('style') ) {
            $style = $imgNode->getAttribute('style');

            // Width
            if (preg_match('~width:\s*(\d+)([a-z]+)~i', $style, $matches)) {
                $width = $matches[1];
                // Convert unit to pixel
                if ( isset($units[$matches[2]]) ) {
                    $width *= $units[$matches[2]];
                }
            }

            // Height
            if (preg_match('~height:\s*(\d+)([a-z]+)~i', $style, $matches)) {
                $height = $matches[1];
                // Convert unit to pixel

Kind regards