Whenever I switch between full and mobile versions of the site (via links in the footer) I see weird unique parameter in browser's address line:
What's this?
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3It is a cache breaker– rene ModCommented Aug 14, 2017 at 19:46
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I think it is needed to prevent the browser to serve you the main page from its cache where it really need to be a new fetch from the server to give you the mobile html, css and javascript. Otherwise you might end-up with an unhealthy mix of mobile and full-site versions of those files.– rene ModCommented Aug 14, 2017 at 19:51
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@rene are there any other ways to switch between sites without spoiling address line?– αλεχολυτCommented Aug 14, 2017 at 20:46
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1 Answer
This is typical of the way jQuery handles Ajax calls, which
works by appending "_={timestamp}" to the GET parameters.
(source)
If you dig a bit through the JavaScript of the Stack Exchange site, you'll see that there are some Ajax calls involved in switching between the full and the mobile site.
answered Aug 14, 2017 at 19:54
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@alexolut no. My browser (Safari) shows nothing but the host (meta.stackexchange.com) anyway.– Glorfindel ModCommented Aug 14, 2017 at 20:33
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if you make a tap on the address line you will see it in Safari too.– αλεχολυτCommented Aug 14, 2017 at 20:43
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@Glorfindel In case you weren’t aware, that’s an option in Safari Preferences > Advanced.– grgCommented Aug 15, 2017 at 6:39