Should SVG's <script> element support the fetchpriority attribute analogous to HTML's <script> element?

[mbrodesser-Igalia]

Relevant spec section: https://svgwg.org/svg2-draft/interact.html#ScriptElement
Related HTML spec section: https://html.spec.whatwg.org/multipage/scripting.html#attr-script-fetchpriority

Might belong to #905.

[pmeenan]

As things stand right now, I don't know that it makes a lot of sense for there to be a fetchpriority on the SVG script element. As far as I can tell, it doesn't support async or defer yet so the SVG scripts are blocking and there isn't really a use case for developers to be able to adjust the priority.

If async or defer (or module support) is ever added to SVG script then it might make sense at that point to consider if it also makes sense to add fetchpriority support as well.

[longsonr]

@pmeenan Firefox will support async, defer and module from version 117. The SVG 2 specification does mention that async and defer should be supported.