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WSGI middleware for statistical HTML browser resource squeezing.

Project description

This package provides a WSGI middleware component which “squeezes” HTML documents by merging browser resources (javascript and stylesheets).

It uses statistical analysis to determine the optimal bundles based on the HTML documents that pass through it. Vary-headers are observed, as are resource expiration dates.

Documents that are not squeezed are given the ‘no-cache’ pragma in an expectation that we will be able to squeeze it after sufficient burn-in. Squeezed documents are served with expiration dates no later than the expiration dates of the squeezed resources which it references.


The middleware requires two following options to be set:

@cache_dir: Relative path to a directory where we store squeezed resources

@url_prefix: Path segment or full base URL that will be used to serve the cache directory as static files.

Remember to configure a WSGI application to serve the squeezed resources!


0.4.2 (released 2009-05-11)

  • Add semicolon after javascripts to make sure any function-block is properly terminated (necessary due to concatenation). [malthe]

0.4.1 (released 2009-04-20)

  • Parse unicode body to ensure correct character decoding. [malthe]

0.4 (released 2009-04-15)

  • If a response has status ‘304 Not Modified’, update the ttl but not the content. [malthe]

  • If a script- or style-tag does not have a source or link, ignore it. [malthe]

  • Unquote request URL when querying cache. [malthe]

  • Added support for repoze.xmliter which allows reusing an lxml document tree between middlewares. [malthe]

  • Media types for stylesheets are now taken into account when merging the resources. Squeze uses CSS2 @media <type> syntax. [jvloothuis]

0.3 (released 2008-10-08)

  • Relative URLs appearing in stylesheets are now made absolute before merging. [malthe]

0.2 (released 2008-10-03)

  • Add setuptools as a dependency. [malthe]

0.1 (released 2008-10-02)

  • Initial release.

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