Submission canceled because the form is not connected solution after AJAX post jump page form

Reference to this article: https://segmentfault.com/q/1010000000473230 Error: getting error "form submission canceled because the" form is not Connected

Then in: http://stackoverflow.com/questions/42053775/ Getting-error-form-submission-canceled-because-the-form-is-not-connected found the answer, adding $ (document.body). Append (Form) , and then solve the problem.

The specific principle is as follows:

Details:according to the HTML standards, if the ' form is ' not ' associated browsing context (document), form submission'll Be aborted.

HTML SPEC. 4.10.21.3.2

This spec is applied in Chrome.

var url = "__root__/index.php/home/apiinfo/register"; RequestData = {' email ': email, ' pwd ':p wd};
$.post (URL, requestdata, function (data) {
if (data!= null) {
alert (data);
}else{
var form = $ ("<form method= ' post ' ></form>");
Form.attr ({"Action": "__root__/index.php/home/apiinfo/sucess"});
$ (document.body). append (form);
Form.submit ();
}

});

/////////////////////////////////////////

Later, with form submission, Ajax validation, in a different way to achieve:

var url = "__root__/index.php/home/apiinfo/isexist";
RequestData = {' email ': email};
var isOk = true;
$.ajax ({
    url:url,
    type: ' Get ',
    Data:requestdata,
    async:false,//critical operation, you need to wait until result to perform the following Operation
    success: function (data) {
        alert (data);
        IsOk = false;
    }
});
return isOk;