Do you want to take control and manage your outgoing connections? A tool like Smokescreen could help as it can block some of the trickier destinations for your GET requests. We’ve got an example of how you can deploy it on Fly.
Read more on fly-examples/smokescreen-example.
Smokescreen is fantastic. Silly easy to use and protects apps from some really tough problems.
And now this example has had a revamp, with added basic authentication and proxy passwords. We’ll have a fuller write up on it in the blog, but for now head over to fly-examples/smokescreen-example and check out the updated README for details.