NPAPI:ClearSiteData: Difference between revisions
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Flash Local Storage: [http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html] | Flash Local Storage: [http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html] | ||
Firefox issue - clearing local storage with time range: [https://bugzilla.mozilla.org/show_bug.cgi?id=527667 https://bugzilla.mozilla.org/show_bug.cgi?id=527667] | |||
= API Requirements = | = API Requirements = | ||
Revision as of 12:49, 2 February 2010
Status
(work in progress)
Problem Summary
In short: let the UA's "clear cookies" function also clear Flash's local storage.
More precisely: delegate calls to the UAs "clear privacy information" to plugins, allowing them to clean up their locally stored data as well.
Overview of current UIs
| Type | Firefox | IE | Opera | Safari | Chrome |
|---|---|---|---|---|---|
| Browsing History | yes | yes | yes | yes | yes |
| Download History | yes | yes | yes | yes | yes |
| Form History | yes | yes | ? | yes | yes |
| Search History | yes | ? | ? | ? | ? |
| Cookies | yes | yes | temporary/all | yes | yes |
| Cache | yes | yes | yes | yes | yes |
| Active Logins | yes | yes | "password manager" | yes | yes |
| Site Preferences | yes | ? | ? | ? | ? |
In addition, IE has "InPrivate Filtering Data" (what is this?)
In addition, Opera has "delete password protected pages and data" and "bookmark visited times".
In addition, Safari has "webpage preview images", "website icons" and "top sites"
Here's an attempt to categorize these a bit more abstractly:
- things the user enters, except for credentials (form data)
- credentials
- things cached by the UA (pages, preview images, icons)
- local data stored by the server / web application (cookies, HTML5 local storage, Flash/Silverlight local storage)
- history information (bookmarks, visited URIs)
- settings specific to a site (for instance, preferences with respect to privacy, script disabling...)
| Parameters | Firefox | IE | Opera | Safari | Chrome |
|---|---|---|---|---|---|
| Time Range | yes | no | no | no | yes |
| By Site | yes (context menu in history) | ?? | ?? | ?? | ?? |
Existing Discussion and Documentation
Mail thread on plugin-futures: https://mail.mozilla.org/private/plugin-futures/2010-January/001150.html
In particular, Lloyd Hilaiel proposed an alternate approach where plugins would store everything in a standard filesystem based layout, so the UA itself can do the clearing. See https://mail.mozilla.org/private/plugin-futures/2010-January/001156.html
Flash Local Storage: http://www.macromedia.com/support/documentation/en/flashplayer/help/help02.html
Firefox issue - clearing local storage with time range: https://bugzilla.mozilla.org/show_bug.cgi?id=527667