Hopefully fixed the caching problem with random

musicserver.go

@@ -100,15 +100,20 @@ type SongData struct {
 }
 
 func indexHandler(w http.ResponseWriter, r *http.Request) {
-	(w).Header().Set("Access-Control-Allow-Origin", "*")
+	setCorsAndNoCacheHeaders(&w, r)
+
 	if r.URL.Path == "/version" {
 		w.Header().Add("Content-Type", "application/json")
 
 		testf()
 
-		data := VersionData{Version: "2.0.1",
-			Changelog: "Fixed CORS",
+		data := VersionData{Version: "2.0.2",
+			Changelog: "Hopefully fixed the caching problem with random.",
 			History: []VersionData{
+				{
+					Version:   "2.0.1",
+					Changelog: "Fixed CORS",
+				},
 				{
 					Version:   "2.0.0",
 					Changelog: "Rebuilt the application in Go.",
@@ -165,3 +170,27 @@ func indexHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 }
+
+func setCorsAndNoCacheHeaders(w *http.ResponseWriter, r *http.Request) {
+	var etagHeaders = []string{
+		"ETag",
+		"If-Modified-Since",
+		"If-Match",
+		"If-None-Match",
+		"If-Range",
+		"If-Unmodified-Since",
+	}
+
+	(*w).Header().Set("Expires", "Tue, 03 Jul 2001 06:00:00 GMT")
+	(*w).Header().Set("Last-Modified", time.Now().String()+" GMT")
+	(*w).Header().Set("Cache-Control", "no-cache, no-store, private, max-age=0")
+	(*w).Header().Set("Pragma", "no-cache")
+	(*w).Header().Set("X-Accel-Expires", "0")
+	(*w).Header().Set("Access-Control-Allow-Origin", "*")
+
+	for _, v := range etagHeaders {
+		if r.Header.Get(v) != "" {
+			r.Header.Del(v)
+		}
+	}
+}