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Why are some Cloudflare challenges CPU intensive?
I notice in Chrome's Task Manager that some Cloudflare challenges are CPU intensive. Why?
E.g., in the following screenshot, Cloudflare challenges took over 1 hour of CPU (representing ~25% of the browser's CPU time):
| Task | Memory footprint | CPU Time |
|---|---|---|
| Chrome | 1,406,200K | 4h 42m 53s |
| Dedicated Worker: blob:https://challenges.cloudflare.com/abc | 144,148K | 1h 13m 58s |
