title: File upload through Postman is faster than through the browser
body: <p>I upload the same video file (145 Mb size) from the same computer to the same server. Upload is done with POST request with multipart/form-data. If I do it with Postman, the upload takes about 30s. If I do it from a browser (tested Chrome, FF, Safari), it takes about a minute. </p>
  
  <p>Postman headers:</p>
  
  <pre><code>Cookie: __cfduid=d629ccab89f0d8996cbcd03fd85d7edad1588857074
  Postman-Token: &lt;calculated when request is sent&gt;
  Content-Type: multipart/form-data; boundary=&lt;calculated when request is sent&gt;
  Content-Length: &lt;calculated when request is sent&gt;
  Host: &lt;calculated when request is sent&gt;
  User-Agent: PostmanRuntime/7.24.1
  Accept: */*
  Accept-Encoding: gzip, deflate, br
  Connection: keep-alive
  </code></pre>
  
  <p>Browser headers:</p>
  
  <pre><code>:authority: domain.com
  :method: POST
  :path: /file/add
  :scheme: https
  accept: application/json, text/plain, */*
  accept-encoding: gzip, deflate, br
  accept-language: ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7
  cache-control: no-cache
  content-length: 145506546
  content-type: multipart/form-data; boundary=----WebKitFormBoundaryWWuN1xlu5NeYmSLR
  origin: https://somedomain.com
  pragma: no-cache
  referer: https://somedomain.com/
  sec-fetch-dest: empty
  sec-fetch-mode: cors
  sec-fetch-site: cross-site
  user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
  </code></pre>
  
  <p>Does anyone have any idea why upload through browser takes twice more time?</p>