The problem only hit POST requests, all GET requests continue to work fine.
Searching for similar problem on this site I found https://magpcss.org/ceforum/viewtopic.php?f=6&t=17826&p=46838&hilit=cors#p46623, and adding
- Code: Select all
settings.CefCommandLineArgs.Add("disable-features", "OutOfBlinkCors");
solved the problem for me. But I guess that's not how thought are supposed to work.
my original Bugreport is on github: https://github.com/cefsharp/Questions-and-Support/issues/60.