Run hlx import and try to import page https://www.globe.com.ph/business/enterprise.html. Nothing happens, the proxy returns 403.
Try to open proxy page in another browser tab: http://localhost:3001/business/enterprise.html?host=https%3A%2F%2Fwww.globe.com.ph and you get this:

The proxy request has the exact same headers than the browser request. Cloudflare puts a lot of effort from proxy / scripts / bots (well, no humans...) to not access the site. I do not think we can workaround this.