this.ctx.redirect ("url", xxx) 
 how to fill in here, redirect cross-domain problem 
 this.ctx.redirect ("url", xxx) 
 how to fill in here, redirect cross-domain problem 
  ctx.unsafeRedirect (url)  
from-an-html-page" rel=" nofollow noreferrer "> https://stackoverflow.com/que.
this.ctx.body = `<meta http-equiv="refresh" content="0; url=${url}" />`Previous: Push the Excel document stream to me in the background. How can I convert and download it? Urgent