Haketilo

# Known limitations

We list surprising, non-obvious issues and possible privacy shortcomings in version 0.1 of Hachette.

* Hachette currently uses short-lived cookies tp smuggle settings to its content scripts. Although partially worked around using outgoing response filtering and unlikely to happen in practice, cookies might leak and a website owner could use them to learn that a user's browser has Hachette running in it. We are investigating possible solutions.

* Currently, user scripts can only be injected to HTML pages.

* Currently, user scripts under Mozilla-based browsers may fail to run on pages loaded from `file://` schema.

* On some (Mozilla-based) browsers Hachette might disrupt XML preview.

* Hachette doesn't have additional features one could expect from a content blocker:

  * There is currently no option to disable Service Workers while allowing normal scripts to execute.

  * There is currently no option to disable loading of external/third-party fonts, tracking pixels, or other strategies that are used by Google and similar companies for snooping on internet users.

* There is currently no facility to anonymize queries Hachette makes to its script repositories. This means a bad admin of a [Hydrilla](https://hachettebugs.koszko.org/projects/hydrilla/wiki) instance could see the sites for which a Hachette user tried to find custom scripts.

* Hachette is still missing:

  * UI Translations

  * Accessiblity features

  * Mobile support

* Pages that were open during Hachette's installation/enabling might break in weird ways (under Mozilla browsers) and Hachette will not function there properly (all browsers). Reloading each browser tab is the simplest solution to this issue.

* There are almost certainly other bugs.