I use redirects for dynamic short urls where the destination url will change on a frequent basis. Unfortunately, browsers cache 301 redirects.
To prevent a 301 redirect from being cached just set the cache control headers, then you can undo the redirect and clients (bot and browsers) will no longer get redirected.
Header set Cache-Control "max-age=0, no-cache, no-store, must-revalidate" Header set Pragma "no-cache" Header set Expires "Wed, 11 Jan 1984 05:00:00 GMT"
A http status code 301 without caching can be used to do URL canonicalization while retaining the tracking functionality.
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