Jetpack sitemap error on mapped domain

Having an issue with Jetpack sitemap and Domain Mapping on all the sub-sites in my network. Jetpack generates the sitemap urls but they point to the old sub-domain, instead of the mapped domain.

That seems to cause a console error when viewing the sitemap via the mapped domain url:
"Unsafe attempt to load URL http://subsite1.domain.com/sitemap-index.xsl from frame with URL http://subsite1.com/sitemap.xml. Domains, protocols and ports must match."

If accessed through the sub-domain(subsite1.domain.com/sitemap.xml), there's no error and the sitemap displays.