NSURLConnection crashing under 10.5.7

Question

I have a little app that downloads stock prices and was working perfectly (for years) until my recent upgrade to 10.5.7. After the upgrade, the program would crash on this

Answer 1

I have also seen this exact same crash appearing in 10.5.7 in several applications.

Given that implementing the simplest connection:willSendRequest:redirectResponse: delegate method will solve the problem, I think might be highly related to radar #6700222.