CRM 365 custom html and submit button.

Hello All experts,

Very strange thing , i am clicking on the custom button present on custom entity form.

which opens a custom html web resource.

on custom html web resource i have submit button which does some work and close the current window.

problem statement:- 

1. When coming from custom entity single record page  then opens the custom web resource but that single record form goes off and the grid do display on the form .

2. Suppose another website is opened in the browser then after clicking submit button then it doesn't redirects to the crm grid page rather it opens up that another website page.

I have checked it does happen in the IE browser and not in the Google Chrome browser.

can anyone help me in resolving this.