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first pass at supporting a default base URL

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this allows remote images to be specified as relative URLs, relative to
the `DefaultBaseURL` field.  Fixes #15.
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Will Norris 2015-02-19 21:34:22 -08:00
parent dbac2f8063
commit ad54d71881
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README.md
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@ -154,6 +154,20 @@ you want to use a different caching implementation, it's probably easiest to
just make a copy of `cmd/imageproxy/main.go` and customize it to fit your
needs... it's a very simple command.
### Default Base URL ###
Typically, remote images to be proxied are specified as absolute URLs.
However, if you commonly proxy images from a single source, you can provide a
base URL and then specify remote images relative to that base. Try it out by running:
imageproxy -baseURL https://octodex.github.com/
Then load the codercat image, specified as a URL relative to that base:
<http://localhost:8080/500/images/codercat.jpg>. Note that this is not an
effective method to mask the true source of the images being proxied; it is
trivial to discover the base URL being used. Even when a base URL is
specified, you can always provide the absolute URL of the image to be proxied.
## Deploying ##