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Change log

Next version

  • Dropped support for Python 2.7 and 3.5.
  • Raised the minimum lxml version to the current 4.6.3.
  • Switched from Travis CI to GitHub actions. Added Python 3.9 to the CI matrix.
  • Renamed the main branch to main.
  • Switched to a declarative setup.

1.9 (2020-01-20)

  • Added Python 3.8 to the CI matrix.
  • Be able to keep the <style> tag by adding it to tags.
  • Added a style check to the CI matrix.

1.8 (2019-11-21)

  • Actually added support for customizing lxml's autolinking behavior using a dictionary argument.
  • Stopped removing explicitly allowed attributes.
  • Removed id from allowed attributes of <a> tags to provide an additional layer of defense against DOM clobbering attacks.
  • Added an element preprocessor which assigns the id value to the name attribute of anchors if name isn't set or empty. This should provide additional backwards compatibility making the id removal less of a problem when using named anchors.

1.7 (2019-02-19)

  • Added a system check which validates sanitizer configurations early when using Django.
  • Fixed an edge case where passing in an empty allowed tags list would unexpectedly and silently not remove any tags at all (because that's the way lxml's cleaner works).
  • Changed the sanitizer tags, empty and separate options to also accept any iterable, not just sets.
  • Changed the lru_cache import in the Django module to try functools first.
  • Fixed the tag merging to also check tags in empty. This means that e.g. consecutive <hr> tags are also merged now when using the default settings.
  • Made it possible to override the set of tags processed as whitespace. The default set is {"br"} which preserves the current behavior of stripping breaks from the beginning or end of tags' content.

1.6 (2018-06-29)

  • Fixed another edge case where a tag which is allowed to be empty was erroneously removed if it contained not only whitespace but also a <br> tag.

1.5 (2018-06-01)

  • Fixed a few edge whitespace normalization edge cases and a bug where removing an empty tag removed all whitespace.
  • Added black for automatically formatting the Python code.
  • By default, links with target="_blank" get an additional rel="noopener" attribute (Article by Mathias Bynens). If you're overriding the list of allowed attributes for anchor tags you must add rel to your list.

1.4 (2018-03-29)

  • Corrected the required lxml version in install_requires.
  • Added comments and testing for more edge cases.
  • Changed the cleaner to not drop form elements; instead, <form> is converted to <p>, and form elements are preserved.
  • Added an is_mergeable hook for conditionally preventing the merging of adjacent elements.
  • Fixed a case where paragraphs were allowed inside paragraphs (which was never the idea).

1.3 (2017-09-22)

  • Fixed a case where tags with content between them were erroneously merged.
  • Added a tox.ini file for running style checks and tests.
  • Replaced REPLACEMENTS and element_filters with the more general element_preprocessors and element_postprocessors settings.
  • Removed the restriction that <span> tags are never allowed.

1.2 (2017-05-25)

  • Fixed the erroneous removal of all whitespace between adjacent elements.
  • Fixed a few occasions where <br> tags were erroneously removed.
  • Back to beautifulsoup4 for especially broken HTML respectively HTML with Emojis on macOS.
  • Used a <div> instead of <anything> to wrap the document (since beautifulsoup4 does not like custom tags too much)

1.1 (2017-05-02)

  • Added html_sanitizer.django.get_sanitizer to provide an official way of configuring HTML sanitizers using Django settings.

1.0 (2017-05-02)

  • Initial public release.