ios - NSURLSessionConfiguration HTTPAdditionalHeaders 未设置

Question

授权 header 在 NSURLSessionConfiguration 中设置，但是它没有附加到 NSURLSessionDataTask。这是 Foundation framework 中的错误吗？

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
[configuration setHTTPAdditionalHeaders:@{@"Authorization":@"123"}];

// Initialize session with NSURLSessionConfiguration
NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
NSURLSessionDataTask *sessionTask = [session dataTaskWithRequest:request
                                        completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
}];

[sessionTask resume];

Answer 1

在 NSURLSessionConfiguration document ,

An NSURLSession object is designed to handle various aspects of the HTTP protocol for you. As a result, you should not modify the following headers:

Authorization

Connection

Host

WWW-Authenticate