I'm not sure if this is correct or not, but after upgrading to version 2.22.0 the CORS proxy for the newsfeed module seems to be enabled by default. I could only turn it off by changing if (useCorsProxy === undefined) useCorsProxy = true; to if (useCorsProxy === undefined) useCorsProxy = false; inside modules/default/newsfeed/node_helper.js. Shouldn't it be set to false by default?