Detect browser TLS compatibility

Question

We have a SSL website where the host has recently disabled older SSL protocols like TLS 1.0 and below. Depending on the browser, the site visitor gets a blank page or a cryptic

Answer 1

Here is a way Create a image with jQuery, and add a src attribute, I use a button from PayPal, now all the request to PayPal must be via TSL1.2 Hope this can work

jQuery('').on({
    load: function() {
      console.log("support TSL1.2");
    },
    error: function() {
      console.log('no support TSL1.2');
    }
}).attr('src','https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif');