Navigation API: sourceElement

[noamr]

Request for Mozilla Position on an Emerging Web Specification

• Specification title: Navigation API sourceElement
• Specification or proposal URL (if available):
• Explainer URL (if available): https://github.com/WICG/navigation-api/blob/main/README.md#navigation-monitoring-and-interception
• Proposal author(s) (@-mention GitHub accounts): @noamr @domenic
• Caniuse.com URL (optional):
• Bugzilla URL (optional):
• Mozillians who can provide input (optional): @zcorpan
• WebKit standards-position:

Other information

This is a somewhat minor addition to the navigation API requested by devs, but making sure is Mozilla is on board with it for completeness.

[zcorpan]

This seems reasonable to me, and useful for View Transitions (as noted in the linked issue). Thoughts @petervanderbeken ?