type of a custom NSURLProtocol?

2018-05-31 01:30:09

I've written a custom subclass of NSURLProtocol, however it seems that whenever I use the protocol to load a request in UIWebView it assumes the data is content-type "text/html". Is there a way to specify that this content is actually something else (For instance "text/plain" or "image/png")?

内容类型实际上由NSURLResponse携带，您可以使用NSURLProtocolClient方法修改URLProtocol：didReceiveResponse：cacheStoragePolicy：例如，设置为text / plain

NSURLResponse *textResponse = [[NSURLResponse alloc] initWithURL:self.request.URL MIMEType:@"text/plain" expectedContentLength:100 textEncodingName:@"UTF-8"];
[self.client URLProtocol:self didReceiveResponse:textResponse cacheStoragePolicy:NSURLCacheStorageAllowedInMemoryOnly];

内容类型由NSMutableURLRequest携带。

[request setValue:@"image/png" forHTTPHeaderField:@"content-type"];

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