Bug in proxy-cache plugin returning compressed cached content to clients not supporting compression about kong HOT 7 OPEN

@tobiasehlert It's still pending decisions.

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I'm unsure if we should consider this a bug or a possible improvement. But we could fix this and there's a workaround.
You could use vary_headers to include "Accept-Encoding" in the cache key so they will be considered different responses.
The default behavior is not very reasonable. 2 quick ideas:

1. add the "Accept-Encoding" as the default value;
2. handle different encoding especially

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@StarlightIbuki @chronolaw Can you take a look at #12876 while you get time?

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@git-hulk Thanks for your contribution. I'm going to review it soon.

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This issue is marked as stale because it has been open for 14 days with no activity.

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@StarlightIbuki, how is the progress on the review on #12867?
Saw you approved it but needed to check internally :)

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This issue is marked as stale because it has been open for 14 days with no activity.

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