Could the <input rel> attribute be made redundant if the event carried the rel

[prushforth]

In writing the explainer for this, it occurs to me that <input rel="..."> is a bit weird, and certainly not found in HTML (?). It would be less weird if the location event that is being serialized through the <input> actually identified what it was related to i.e. the tile, the map extent, or even the pixel.

To do that, I'm not sure, but I think the <link rel="tile" ...> or <link rel="query" ...> would have to add that information to the event when generating it. It seems possible for a <link rel="image or tile"> but <link rel="query"...> can carry parameters that are tile-specific or extent-specific (WMTS vs WMS, respectively).

Anyway, leaving this here if anyone has some ideas, they would be welcome.