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google-chromehttp-accept-encodingbrotli

Does Chrome support Brotli? (Accept-Encoding does not contain br)

Can I use page says that Chrome supports brotli for some time now. I would think that the Accept-Encoding string would be like this:

Accept-Encoding:gzip, deflate, sdch, br

But I checked on a request to StackOverflow e.g. and it does not contain brotli:

Accept-Encoding:gzip, deflate, sdch

I suppose most web servers won't really return you brotli if it's not in Accept-Encoding, so it's kind of partially supported only it seems.

Is it going to be added later or there is some trick I don't know of?

Solution

  • Brotli only works over HTTPS

    There are many blog posts about this if you Google it. Here's one:

    https://samsaffron.com/archive/2016/06/15/the-current-state-of-brotli-compression

    Brotli is HTTPS only

    If you visit a site over HTTP your browser will not accept the br encoding. The reasoning for this is documented at the end of the chromium issue.

    The Chromium issue linked is here:

    https://bugs.chromium.org/p/chromium/issues/detail?id=452335

    StackOverflow can be accessed on a non-HTTPS connection

    Make sure you are going to https://stackoverflow.com instead of http://stackoverflow.com

    EDIT: StackOverflow can no longer be accessed on non HTTPS connection.