Steffen Brüheim 4ebf100f09
encode: ignore flushing until after first write (#4318)
* encode: ignore flushing until after first write (fix #4314)

The first write will determine if encoding has to be done and will add an Content-Encoding. Until then Flushing has to be delayed so the Content-Encoding header can be added before headers and status code is written. (A passthrough flush would write header and status code)

* Update modules/caddyhttp/encode/encode.go

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2021-08-31 13:36:36 -06:00
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