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_ENVIRONMENT.md. Windows does case insensitive env variables

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Closes #21907
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Daniel Stenberg 2026-06-08 12:40:55 +02:00
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3
docs/cmdline-opts/_ENVIRONMENT.md
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@ -3,7 +3,8 @@
# ENVIRONMENT
The environment variables can be specified in lower case or upper case. The
lower case version has precedence. `http_proxy` is an exception as it is only
available in lower case.
available in lower case. (Note that some systems, like Windows, do not
differentiate between environment variables using different case.)
Using an environment variable to set the proxy has the same effect as using
the --proxy option.

4
docs/libcurl/libcurl-env.md
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@ -32,8 +32,8 @@ uses the **ftp_proxy** variable.
These proxy variables are also checked for in their uppercase versions, except
the **http_proxy** one which is only used lowercase. Note also that some
systems actually have a case insensitive handling of environment variables and
then of course **HTTP_PROXY** still works.
systems (like Windows) have a case insensitive handling of environment
variables and then of course **HTTP_PROXY** still works.
An exception exists for the WebSocket **ws** and **wss** URL schemes, where
libcurl first checks **ws_proxy** or **wss_proxy** but if they are not set, it