为什么ASP.NET在手动刷新响应时用Transfer-Encoding标头替换Content-Length标头？

Our web application (ASP.NET Web Forms) has a page that will display a recently generated PDF file to users. Because the PDF file is sometimes quite large, we've implemented a "streaming" approach to send it down to the client browser in chunks.Our web application (ASP.NET Web Forms) has a p