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I'm playing with Go (first time ever) and I want to build a tool to retrieve images from Internet and cut them (even resize) but I'm stuck on the first step. package main import ( "fmt" "http" ) var client = http.Client{} func cutterHandler(res http.ResponseWriter, req *http.Request) { reqImg, err := client.Get("http://www.google.com/intl/en_com/images/srpr/logo3w.png") if err != nil { fmt.Fprintf(res, "Error %d", err) return } buffer := make([]byte, reqImg.ContentLength) reqImg.Body.Read(buffer) res.Header().Set("Content-Length", fmt.Sprint(reqImg.ContentLength)) /* value: 7007 */ res.Header().Set("Content-Type", reqImg.Header.Get("Content-Type")) /* value: image/png */ res.Write(buffer) } func main() { http.HandleFunc("/cut", cutterHandler) http.ListenAndServe(":8080", nil) /* TODO Configurable */ } I'm able to request an image (let's use Google logo) and to get its kind and size. Indeed, I'm just re-writing the image (look at this as a toy "proxy"), setting Content-Length and Content-Type and writing the byte slice back but I get it wrong somewhere. See how it looks the final image rendered on Chromium 12.0.742.112 (90304): Also I checked the downloaded file and it is a 7007 bytes PNG image. It should be working properly if we look at the request: GET /cut HTTP/1.1 User-Agent: curl/7.22.0 (i486-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.0e zlib/1.2.3.4 libidn/1.23 libssh2/1.2.8 librtmp/2.3 Host: 127.0.0.1:8080 Accept: / HTTP/1.1 200 OK Content-Length: 7007 Content-Type: image/png Date: Tue, 27 Dec 2011 19:51:53 GMT [PNG data] What do you think I'm doing wrong here? Disclaimer: I'm scratching my own itch, so probably I'm using the wrong tool :) Anyway, I can implement it

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