add comment for method Redirect and Header in pkg/app/context.go

pkg/app/context.go

@@ -769,10 +769,16 @@ func (ctx *RequestContext) Reset() {
 	ctx.conn = nil
 }
 
+// Redirect returns an HTTP redirect to the specific location.
+// Note that this will not stop the current handler.
+// in other words, if existed,the following code maybe execute and cause unexpected result
 func (ctx *RequestContext) Redirect(statusCode int, uri []byte) {
 	ctx.redirect(uri, statusCode)
 }
 
+// Header is an intelligent shortcut for ctx.Response.Header.Set(key, value).
+// It writes a header in the response.
+// If value == "", this method removes the header `ctx.Response.Header.Del(key)`
 func (ctx *RequestContext) Header(key, value string) {
 	if value == "" {
 		ctx.Response.Header.Del(key)