When i tired to get list title from developer site present in SharePoint online, i get CROS error. I have provided full permission to list and web in AppManifest.xml;
It is a simple ajax call that consume Sharepoint api rest services
Code:-
function ajaxcall() {
var url1 = "https://xxxlll365.sharepoint.com/sites/devsite/_api/web/lists/getbytitle('xxx')/items?$select=Title";
$.ajax({
url: url1,
dataType: 'json', //tired xml,jsonp, crossdoman:true [no big change]
cros: true,
success: function (result) {
$("#div1").html(result);
}
});
Console Error XMLHttpRequest for https://xxxlll365.sharepoint.com/sites/devsite/_api/web/lists/getbytitle('xxx')/items?$select=Title required Cross Origin Resource Sharing (CORS)."Error"
Tired with angularJS and got same error as above !
Here are some detailed articles for your reference:
WebAPI and CORS enabled REST services
Cross Site Scripting with SharePoint 2013 REST calls
CORS with sharepoint
CORS SP