Data source proxy: Fixed issue with Gzip enabled and data source proxy, Fixes #1675

pkg/middleware/util.go

@@ -0,0 +1,20 @@
+package middleware
+
+import (
+	"strings"
+
+	"github.com/Unknwon/macaron"
+)
+
+func Gziper() macaron.Handler {
+	macaronGziper := macaron.Gziper()
+
+	return func(ctx *macaron.Context) {
+		requestPath := ctx.Req.URL.RequestURI()
+		if strings.HasPrefix(requestPath, "/api/datasources/proxy") {
+			return
+		}
+
+		ctx.Invoke(macaronGziper)
+	}
+}