事實上HTTP和HTTPS兩個協(xié)議的url看上去都可以省略端口號,但是他們訪問的默認端口不同
HTTP默認訪問80端口
HTTPS默認訪問443端口
所以http訪問https肯定是跨域
HTTP默認訪問80端口
HTTPS默認訪問443端口
所以http訪問https肯定是跨域
2016-01-17
var request=new XMLHttpRequest();
request.open("GET","get.php",true);
request.send();
request.onreadystatechange=function(){
if(request.readyState===4&&request.status===200){
//做一些事情 request.responseText
}
}
request.open("GET","get.php",true);
request.send();
request.onreadystatechange=function(){
if(request.readyState===4&&request.status===200){
//做一些事情 request.responseText
}
}
2016-01-13