Support default human readable URLs #44
Merged
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My site is just a collection of markdown files with ULID filenames. Multiple top level URLs can point to a ULID file, but I only want one canonical URL. The other urls should just redirect to that canonical.
This PR introduces a mapping where URLs are normalized to the ULID via a KV look up and then converted to the canonical URL via another KV lookup. I'm sensitive of the fact that there are now two requests on the render path so I introduced some caching mechanisms for the lookups themselves. Longer term I'll tweak the caching from the CDN side just to invoke the worker less often so it shouldn't be as big of a concern.