Web Content / cannot display pages with spaces

To replicate:

Create course site
Add Resource and Web Content tool
Create HTML page within Resources tool and make sure the title of the HTML page includes spaces OR the HTML page is created in a folder that contains spaces
Copy the URL of the HTML page and place it for the URL in the Web Content tool
The Web Content tool will now load with HTTP Status 404 error.

If the HTML page has a title with no spaces, it will load in the Web Content tool.