ajax requests are not recorded when the request url is "//test.com/" and the location.origin is "http://test.com"

as the title says,

when the ajax request url is //test.com/some-ajax-url and the location.origin is "http://test.com", it won't be working.

https://github.com/nette/tracy/blob/master/src/Tracy/assets/Bar/bar.js#L393

if (window.TracyAutoRefresh !== false && arguments[1].indexOf('//') < 0 || arguments[1].indexOf(location.origin + '/') === 0) {
            this.setRequestHeader('X-Tracy-Ajax', header);
        }

it'll be working if change to arguments[1].indexOf('//') <= 0

[patrickkusebauch]

Can you please write a PR for it if you already know the fix for the issue?