puppeteer request.continue can not work with header host overrided

user_11691473 0
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Tell us about your environment:

  • Puppeteer version: 1.19.0
  • Platform / OS version: Debian 9
  • URLs (if applicable):
  • Node.js version: 8

What is the expected result?

I want override the request's host in header. Such as a request url: http://a.com/x.jpg. The DNS resolver may be parse the host to a slower ip address, but I know ther is a better ip like 1.2.3.4. I want to change the url with the ip addrees and modify the host in request header.

like from curl http://a.com/x.jpg

to curl --header "Host:a.com" http://1.2.3.4/x.jpg

What happens instead?

await page.setRequestInterception(true);

page.on('request', request => {
  const newHeaders = Object.assign({}, request.headers(), {
    Host: 'a.com'
});

request.continue({ headers: newHeaders, url: 'http://1.2.3.4/x.jpg' });

but it doesn't work

puppeteer javascript
1 Answers

you should use request.respond to overwrite headers as below:

 page.on('request', request => {
  request.respond({
        headers:{...request._headers,your_new_header_key:value},
        body
  })
});
user_52511140
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