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On *.bing.com add a rel="prev" and rel="next" attribute to the <a> going to Prev and Next pages, so it works with Saka keys and others.
Bing.com, as of 2019 (still the case in 2022), does not yet integrate rel="next" and rel="prev" W3C standard in its <a> tags for previous page and next page. See https://www.w3.org/TR/html5/links.html#sequential-link-types
This prevents it working with some plugins exploiting this standard (such as Saka Keys and similar, e.g. mapping a key to go to prev and next page).
Thus this script does this on *.bing.com's DOM:
document.body.querySelectorAll('a[href][title="Prev page"]').rel = "prev";
document.body.querySelectorAll('a[href][title="Next page"]').rel = "next";