How to check if map applications (Google/Yandex) are installed from a browser using a link on a smartphone?

Question

JavaScript

Greetings!

There is a task of opening native map applications (Yandex and Google) on the phone using a link from the browser.

For this, Yandex, for example, has a special URL (yandexmaps://maps.yandex.ru/).

But there is a need to first check whether map applications are installed on the phone, so that if they are not available, open the map in the browser.
As far as I understand, it will be impossible to check whether the application is installed on the phone from the browser for security reasons.

Maybe this can be done by checking somehow whether there is such a URL scheme on the phone?
Or how can it be done in principle? Somehow to catch in JS?

Answer 1

ajax send a request to yandexmaps://maps.yandex.ru/ and check the result