Datasette-hashed-urls

- If run with Datasette's `--crossdb` option to enable [cross-database queries](https://docs.datasette.io/en/stable/sql_queries.html#cross-database-queries) the `/_memory` database now gains a hash that is the combined hash of all of the attached immutable databases. [Example query](https://datasette-hashed-urls.vercel.app/_memory?sql=select+*+from+fixtures.facetable+union+all+select+*+from+fixtures2.facetable). [#15](https://github.com/simonw/datasette-hashed-urls/issues/15)

- Fixed a bug where the necessary CORS headers were not included with the redirects. [14](https://github.com/simonw/datasette-hashed-urls/issues/14)

- Now depends on [Datasette 0.61.1](https://docs.datasette.io/en/stable/changelog.html#v0-61-1)
- Fixes several bugs: [9](https://github.com/simonw/datasette-hashed-urls/issues/9), [#10](https://github.com/simonw/datasette-hashed-urls/issues/10), [#12](https://github.com/simonw/datasette-hashed-urls/issues/12), [#13](https://github.com/simonw/datasette-hashed-urls/issues/13) - thanks for the QA, Forest Gregg.

- The URL for a cached database file is now `/fixtures-aa7318b` - previously it used an underscore. This ensures compatibility with existing installations that had used Datasette's now deprecated [hashed URL mode](https://docs.datasette.io/en/0.60.2/performance.html#hashed-url-mode). [3](https://github.com/simonw/datasette-hashed-urls/issues/3)
- The `max-age` in the cache header can nowbe configured using the `max_age` plugin configuration setting. [6](https://github.com/simonw/datasette-hashed-urls/issues/6)
- Cache header is now `cache-control: max-age=31536000, public` - which has been tested with the cache provided by [Vercel](https://vercel.com/). [#4](https://github.com/simonw/datasette-hashed-urls/issues/4)

- Initial alpha release. [1](https://github.com/simonw/datasette-hashed-urls/issues/1)