Web page content is not gzipped on every computer

I have configured my Apache xampp server to serve gzipped content as described [here][1]. This works successfully on some Firefox and Chrome browsers I have tried on different PCs (Windows and Ubuntu). I could verify this by looking at Network tab in DevTools on Firefox and Chrome browser, where I can see the reduced size that is transferred and also the header Content-Encoding :gzip I also passed the [GIDZipTest][2].

The problem is that for my PC and also another laptop I found (Windows 10) the content is not received as gzip by any browser, although the browsers send the request header that they accept gzip. The weird thing is that when I tested this in the Firefox browser of my Ubuntu VM it receives gzipped content but when I test this in the browser of the PC that hosts the VM it does not receive gzipped content.

I attach some pictures.

Firefox on my PC[3], Chrome on my PC[4], Firefox on VM[5]

  • https://ourcodeworld.com/articles/read/503/how-to-enable-gzip-compression-in-xampp-server
  • http://www.gidnetwork.com/tools/gzip-test.php
  • https://i.stack.imgur.com/9KLSO.png
  • https://i.stack.imgur.com/gcLsW.png
  • https://i.stack.imgur.com/UO9fA.png

  • Finally it worked by replacing http with https ..I don't know why this is required, since I'm using exactly the same version of browser in both cases!

    psCBroe was right. If I look request headers more carefully I can see that in the browser that was not accepting gzip content, the header Accept-Encoding had one more value apart from gzip and deflate, which is br aka Brotli which seems to support compression only for https! Could this probably be the explanation? Although I didn't make any configuration in xampp for Brotli..

    链接地址: http://www.djcxy.com/p/41300.html

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