My guess as to what is happening: 1. Toptal uses Cloudflare for DNS 2. Toptal uses Cloudflare Insights, which automagically inserts the tracking snippet of `h

My guess as to what is happening: 1. Toptal uses Cloudflare for DNS 2. Toptal uses Cloudflare Insights, which automagically inserts the tracking snippet of `https://static.cloudflareinsights.com/beacon.min.js/\\ https://static.cloudflareinsights.com/beacon.min.js/\\*` 3. You send the request to Toptal and somewhere along the line, Cloudflare misinterprets the request and injects the tracking code It's not anything nefarious by Toptal. It's not their minify script. It's a misconfigured page rule, or similar. It's a bug.