beego: support other analisys & fix typo

@@ -152,7 +152,7 @@ func (input *BeegoInput) IsWebsocket() bool {
 
 // IsSecure returns boolean of whether file uploads in this request or not..
 func (input *BeegoInput) IsUpload() bool {
-	return input.Header("Content-Type") == "multipart/form-data"
+	return strings.Contains(input.Header("Content-Type"), "multipart/form-data")
 }
 
 // IP returns request client ip.

@@ -556,7 +556,7 @@ func (p *ControllerRegistor) ServeHTTP(rw http.ResponseWriter, r *http.Request)
 		goto Admin
 	}
 
-	if context.Input.IsPost() {
+	if !context.Input.IsGet() && !context.Input.IsHead() {
 		if CopyRequestBody && !context.Input.IsUpload() {
 			context.Input.CopyBody()
 		}