Dia software seems to use this DTD (at least in some versions)
Bug: T168856
Change-Id: I51ad7ff4a935d4edb78e091142be9c58017dd3af
'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd',
'http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd',
'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-basic.dtd',
- 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd'
+ 'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd',
+ // https://phabricator.wikimedia.org/T168856
+ 'http://www.w3.org/TR/2001/PR-SVG-20010719/DTD/svg10.dtd',
];
if ( $type !== 'PUBLIC'
|| !in_array( $systemId, $allowedDTDs )