Modal Dialog not closing after filling a form

Hi All,

I have created a form using SharePoint List to store items. 
Users can fill out the form by coming to Idea.aspx page. I have a button on the page that opens a Modal dialog.
Once the user submits the form, I would like the Modal to be closed and redirect to the main page. 
Right now the form close and the modal still open and showing the main page.
I tried to use window.location.href, it keep opening it in the Modal.

Thanks,

Abenet

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Abenet