Using svg-edit and some of the variants I've found that seem like they are based on the same JS libraries, I create a basic drawing then using either source editor within svg-edit, or loading up an external Notepad-created SVG, that some attributes on <g> elements for example are tossed out.
I want to amend a typical element with let's say a class="Position" it works, and retains the attribute through edit cycles. But when I use foo="bar" that attribute seems to get discarded completely.
This is fairly inconvenient because I want to use svg-edit to create an arbitrary drawing with some unique-to-me attributes that my code can later recognize.
Is this a dumb question? Am I missing something fundamental about SVGs with arbitrary non-standard type attributes included (and for retention)?