Content-length header missing in response on Win10 UWP with compressed response

[jhandley]

When sending a GET request to a server that responds with gzip encoding in a UWP on Windows 10 the content-length and content-encoding headers are not included in the http_response::headers(). Both of the headers are visible in Wireshark so they must be getting removed somewhere along the line.

Without the content-length of the response there is no way to show download progress.

Test code:

	http_client client(U("http://www.teleyah.com"));

	auto requestTask = client.request(methods::GET).then([=](http_response response)
	{
		for (auto h : response.headers()) {
			OutputDebugString(h.first.c_str());
			OutputDebugString(L" : ");
			OutputDebugString(h.second.c_str());
			OutputDebugString(L"\n");
		}
	});

	try {
		requestTask.wait();
	}
	catch (const std::exception &e) {
	}

[ras0219-msft]

We have explicit APIs for manipulating some headers (such as content length), which is why they are not present in the normal map. See http_headers::content_length().

[jhandley]

http_headers::content_length() returns zero in my test app. From I what see in the source code it just does a lookup in the header map.

[ras0219-msft]

You're right. I'll take a look into this.