Force Web Page Scaling on IOS

Aim

To scale the page up for precise control while formerly forbidden.
To scale the page down for better UI (and sometimes extra options) by simulating a larger screen.

Method

Save a new bookmark and have the address modified as following:
To force enabling scaling up:

javascript:(function(){var vp = document.querySelector("meta[name=viewport]"); if(vp){vp.setAttribute("content", "width=device-width,initial-scale=1,maximum-scale=4.0,minimum-scale=0.1,user-scalable=yes");}})();

To scale down (and enabling scaling up too):

javascript:(function(){var vp = document.querySelector("meta[name=viewport]"); if(vp){vp.setAttribute("content", "width=1920px,initial-scale=1,maximum-scale=4.0,minimum-scale=0.1,user-scalable=yes");}})();

Reference

https://jbguide.me/2014/12/10/use-javascript-to-enlarge-website-on-ios/

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