If your website is on WIX. 

1. Log into wix.com and edit the Website
2. Add a Blank Page
3. Add a Blank Section
4. Quick edit on the Section

5. Add Elements using the button on the right

6. Choose Embed Code, then Embed HTML

7. Paste your Web Code

8. You will see an “oops” message, but ignore that for now and let’s continue

9. Drag the Element box from the corners to give it ample height. About 1,000 px.

10. Click on the Stretch Icon and make it full width, drag the slider to about 150 px margins

11. For best results. Also, change the background colour of the section to white colour.

11. Publish your page from the top right Publish button

Now, open a new browser tab and visit your published calculator page.

You will see the oops message again, but the error message will give you the WIX domain you need to copy.

(Side note: WIX loads all embed codes in an iFrame using a hidden domain different from what you see in the browser’s address box. Since you haven’t authorized that domain, it will show the error)

Here is how to add the WIX domain as an alternative domain

https://canadian-mortgage-app.helpshift.com/hc/en/11-web-calculators/faq/631

We hope this helped.