Fix Apple touch icon

[nidamanx]

-------------------------- layout/tiles/iosicons.php --------------------------
index d57cfd2..2e14380 100755
@@ -51,4 +51,4 @@ if (\theme_essential\toolbox::get_setting('ipadretinaicon')) {
-<link rel="apple-touch-icon-precomposed" sizes="57x57" href="<?php echo $iphoneicon ?>"/>
-<link rel="apple-touch-icon-precomposed" sizes="72x72" href="<?php echo $ipadicon ?>"/>
-<link rel="apple-touch-icon-precomposed" sizes="114x114" href="<?php echo $iphoneretinaicon ?>"/>
-<link rel="apple-touch-icon-precomposed" sizes="144x144" href="<?php echo $ipadretinaicon ?>"/>
\ No newline at end of file
+<link rel="apple-touch-icon" sizes="57x57" href="<?php echo $iphoneicon ?>"/>
+<link rel="apple-touch-icon" sizes="72x72" href="<?php echo $ipadicon ?>"/>
+<link rel="apple-touch-icon" sizes="114x114" href="<?php echo $iphoneretinaicon ?>"/>
+<link rel="apple-touch-icon" sizes="144x144" href="<?php echo $ipadretinaicon ?>"/>

[gjb2048]

Evidence please Davide of API change of 'apple-touch-icon-precomposed' to 'apple-touch-icon'.

[nidamanx]

Hi Gareth. It seems a W3C suggestion. And anyway, Apple used that declaration on iOS2 (but now no one is using so old system)
https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.onlinelifeschool.com%2F#l114c262

[gjb2048]

Ok, but where is the evidence that the replacement is correct please?

[nidamanx]

If you click on the link I gave you, you will see the W3C suggestion

[gjb2048]

But the site says "This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change" therefore could be a 'bug' and not a definitive definition of correctness for the value.

[nidamanx]

Yes, you're right, Gareth.
I trust in W3C so I searched for more info. I found something interesting in Apple.
https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html
In that page is mentioned only:
<link rel="apple-touch-icon" ...>
and not:
<link rel="apple-touch-icon-precomposed" ...>

[gjb2048]

Notes:

https://mathiasbynens.be/notes/touch-icons
h5bp/html5-boilerplate#1615
h5bp/html5-boilerplate#1622
https://developer.apple.com/support/app-store/
https://realfavicongenerator.net/blog/apple-touch-icon-the-good-the-bad-the-ugly/