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Editorial Team
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Asked: 2026-05-31T17:43:13+00:00

HttpGet request = new HttpGet(https://192.168.1.140:8732/…); I wonder why I can only send successfully for

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HttpGet request = new HttpGet("https://192.168.1.140:8732/...);

I wonder why I can only send successfully for custom headers : UserName and AuthToken if I do the following:

    request.setHeader("User-Agent", "android_client");
    request.setHeader("Host", "192.168.1.140:8732");
    request.addHeader("UserName", mUserName);
    request.addHeader("AuthToken", mAuthorizationToken);

Why is that this code NOT sending the UserName but AuthToken only? When the two bottom lines are reversed.

    request.setHeader("User-Agent", "android_client");
    request.setHeader("Host", "192.168.1.140:8732");
    request.addHeader("AuthToken", mAuthorizationToken);
    request.addHeader("UserName", mUserName);

Why is this code failing with 400 error code, invalid hostname when I don’t specific the host

//  request.setHeader("User-Agent", "android_client");
//  request.setHeader("Host", "192.168.1.140:8732");
    request.addHeader("UserName", mUserName);
    request.addHeader("AuthToken", mAuthorizationToken);

If I don’t need to send the UserName and AuthToken, I don’t really need to set the Host and it works just fine with the code commented out like following

//  request.setHeader("User-Agent", "android_client");
//  request.setHeader("Host", "192.168.1.140:8732");

Though I don’t think that it is related, I want to disclose that I am using self-signed certificate for these http call from android following this blog. Looking forward to the divine revelation for my poor http soul …

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1 Answer

  1. Editorial Team

    It is a fluke. I couldn’t reproduce it anymore. I have been working with the working solution and left it for a while working on different project. I come back and take a look with wire /context logging at oleg suggestion with the help of How to enable logging for apache commons HttpClient on Android I couldn’t reproduce the problem anymore. The power of the logging has scared the problem away. Will update if the problem occurs again and if I find out the cause.

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