Not a client, so maybe not what you're after โ but "not on an approved IP โ can't get to it" + bulky JS clients handing you a blank screen is the exact wall I keep hitting. Been building a capture service that renders a page server-side to a static snapshot: PDF/PNG is zero-JS, or a first-party rrweb replay โ no CAPTCHA, no IP allowlist to view it (archive.today blocks flagged/datacenter IPs too, which defeats the point). Honest limits: a snapshot of an interactive client is just a dead login shell, and it can't grab a target that also blocks datacenter crawlers. But for reading a page your IP won't load, it does the job:
https://siteglass.io/archive