2021-05-19 UTC
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[Murray] just throwing out there as someone who doesn't really know about any of the technical terminology in this area: I'd expect "cross-site" to be _within_ a domain based on the name alone (as in page-to-page communication) because it's singular and I cannot think of any non-tech terms that use "cross-x" that imply a multiplicity of "x" e.g. "cross-country" or "cross-company" (may just not know other terms though)