https://bugzilla.wikimedia.org/show_bug.cgi?id=19392
Summary: Favicon, apple-touch-icon links matching the defaults
should not be sent
Product: MediaWiki
Version: unspecified
Platform: All
URL: http://en.wikipedia.org/wiki/Main_Page
OS/Version: All
Status: NEW
Severity: enhancement
Priority: Normal
Component: Page rendering
AssignedTo: [email protected]
ReportedBy: [email protected]
Every page on the Wikipedia outputs headers similar to the following:
<link rel="apple-touch-icon"
href="http://en.wikipedia.org/apple-touch-icon.png"; />
<link rel="shortcut icon" href="/favicon.ico" />
These headers are unnecessary because (in this case) the locations are the
default location for the files concerned. They will be checked anyway by
user-agents that make use of such files, so pointing to them is a waste of
space (137 bytes uncompressed, ~28 bytes gzipped; about 0.2% of the page, but a
more significant portion of the <head>).
Apple touch icon reference:
http://developer.apple.com/safari/library/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html
Shortcut icon reference:
http://msdn.microsoft.com/en-us/library/ms537656%28VS.85%29.aspx
Before these links are output, the rendering code should check that they do not
match the defaults, perhaps by expanding them with wfExpandUrl and comparing
the two. If so, it should not output the links. (The documentation for these
variables should be updated to indicate this feature.)
The protocol and host name of the apple-touch-icon also appears unnecessary; a
relative path should be sufficient to specify a path on the current server. If
that is removed too, it's worth testing setting an iPhone bookmark with a
https: URL, just to ensure it still works.
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![http://en.wikipedia.org/apple-touch-icon.png"](https://en.wikipedia.org/apple-touch-icon.png"){kind=link}