Node, Express, Ajax, Form Submission - node.js

Question

Help, I'm Stuck! I am playing with a CRUD setup with Node Express but with AJAX post request. I have the read form working fine.
The form has one input filed which is a lookup email. AJAX post the form data with the following code
if ($("#rsvp-search-form").length) {
$("#rsvp-search-form").validate({
rules: {
...
},
messages: {
...
},
submitHandler: function (form) {
$("#loader").css("display", "inline-block");
$.ajax({
type: "POST",
url: "/",
data: $(form).serialize(),
success: function (data, textStatus, jqXHR){
if (typeof data.redirect == 'string')
window.location = data.redirect;
}
,
error: function() {
$( "#loader").hide();
$( "#error").slideDown( "slow" );
setTimeout(function() {
$( "#error").slideUp( "slow" );
}, 5000);
}
});
return false; // required to block normal submit since you used ajax
}
});
}
I have a express post route to '/' that returns a status with res.status(#).send() and the proper success/error block is executed based on the whether status # is 400 or 200.
Now on the update form I have the same basic setup with many more form inputs, but the AJAX code does not process the res.status(#).send() response by executing the proper success or error block, instead it is just loading a new page with the same url as the request was processed from.
The AJAX code request is similar to the top with difference of url:
submitHandler: function (form) {
$("#loader").css("display", "inline-block");
$.ajax({
type: "POST",
//The website when loaded has an invitation
//object that is passed by express
url: "/rsvp/" +invitation._id,
data: $(form).serialize(),
dataType: 'application/json'
I verified that the proper post route is running and receiving the invitation._id. It returns res.staus(#).send() but the ajax does not process the success or error block it just redirects to the requesting url but does not actually render the url.
I don't know if it is just that the form is still processing the default action, if the response from express is not correct, etc etc
I hope I have been clear on my issue and someone knows what I am doing wrong here.
Regards!

Answer 1

Update!
I got it working. Though the url with variable was correct and express was receiving the proper id, JS was throwing an error causing everything to crash. I never caught the error because the page would reload to the blank page and clear the console. I fixed it by saving the id in a hidden field when rendering the form and used that instead. Seems to have fixed the problem.
Thanks for looking!