Using A Proxy? what for ..?
Surfing the web isn't at all anonymous. wehn you navigate on the internet your address (IP adress in the computer language) is being written and kept by every website you visit. It is enough for them or third parties to check their web logs to see the ip address of each person that visited their website. These records can be kept for a long time even for years, they rememebr you for long time! Like me you have nothing to hide, but you just want others to respect your privacy, which is compromised when browsing without using a proxy.
Ever been to a hotel and used the local internet access?
While the local proxy doesn't influence browsing very much it can be devastating to a feed reader. Some insane proxies do return permanent redirects for every HTTP resource you request through it. For a feed reader this means that it rewrites the URLs of all your subscriptions. And you won't notice until you are home again when all those "new" proxy URLs are invalid.
While the problem clearly is with the proxy, which should serve temporary redirects only, there is still the question how to recover from this. Since Liferea 1.1.4 your original subscription URLs are stored in the feed cache, so that it can be used to recover the now invalid URLs.
Simple Web Proxies
Using a web proxy you simply bypass your provider and no one knows you visited them. Just go the the proxy website and type the address you want to visit in the form box of the proxy and press enter to borwse. Since you keep navigating under that website proxy your real address information remains hidden and anonymous. There's a huge amount of proxies available on the internet, just use one of the ones in the featured column of proxies of this site.