You need to clean that up as well to avoid e.g. javascript: links, and then there are more issues with SVG if you allow media uploads.

Then you need to be very sure you’re using a proper html5 parser and your rendering is completely canonicalized or you open yourself up to filter evasions (https://cheatsheetseries.owasp.org/cheatsheets/XSS_Filter_Ev...)

And of course I assume that’s what you meant but you should not add upon request, you should evaluate the addition.