So did a bit more digging, searching for instances of "BuyNow" in various stuff loaded and I have some suspicion now this is being done by some service worker a

So did a bit more digging, searching for instances of "BuyNow" in various stuff loaded and I have some suspicion now this is being done by some service worker adjacent to MSN and Bing. I flushed the service workers related to these sites and then loaded one up again, I no longer get the console messages, but I do still get debugger:///VM* objects with a bunhc of BuyNow and message posting that looks like a more robust version of the script from the initial Github posting... Maybe Microsoft just silently dropped something out there. This is pointing more towards KomoD's suggestion this was something that escaped M$, but still makes me uneasy. Posting the code I found to the Github thread.