//fconsole.js

(function() {
    var do_loadfail=function(msg) {
        var a=document.createElement("div");
        a.style.textAlign="left";
        a.style.position="absolute";
        a.style.zIndex="999999";
        a.style.margin="auto";
        a.style.color="rgba("+0xff+","+0xff+","+0x00+",1)";
        a.style.width="max-content";
        a.style.left="0";
        a.style.right="0";
        a.style.top="50%";
        a.style.transform="translateY(-50%)";
        a.style.fontSize="20px";
        a.style.lineHeight="25px";
        a.style.whiteSpace="pre";
        a.innerHTML="Fatal error: "+msg;

        document.body.innerHTML="";
        document.body.style.backgroundColor="rgba("+0x75+","+0x60+","+0x60+",1)";
        document.body.style.height="100vh";
        document.body.style.margin="0";
        document.body.appendChild(a);
    };

    window.loadfail=function(msg) {
        if(document.readyState=="complete") {
            do_loadfail(msg);
        } else {
            window.addEventListener("load", function() {
                do_loadfail(msg);
            });
        }
    };

})();