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I bought a wildcard certificate for *.example.com. Now, I have to secure *.subdomain.example.com. Is it possible to create a sub-certificate for my wildcard-certificate? If it is, how I can do this? Steffen Ullrich No, it is not possible. A wildcard inside a name only reflects a single label and the wildcard can only be leftmost. Thus *.*.example.org or www.*.example.org are not possible. And *.example.org will neither match example.org nor www.subdomain.example.org , only subdomain.example.org . But you can have multiple wildcard names inside the same certificate, that is you can have *

I am writing my own logginMiddleware. Basically, I need to log body of the request and the response. The problem that I faced is that when I read body, it becomes empty and I cannot read it twice. I understand that it happens because it is of type ReadCloser. Is there a way to rewind body to the beginning? Inspecting and mocking request body When you first read the body, you have to store it so once you're done with it, you can set a new io.ReadCloser as the request body constructed from the original data. So when you advance in the chain, the next handler can read the same body. One option is