Hosting on Sharepoint Online - can't find a solution anywhere!

Hi,

I've been trawling these forums trying to find and answer to my issue, but not getting anywhere. I simply cannot get my storyline course to host on Sharepoint. I'm hoping if I walk through, step-by-step, the process I'm undertaking, maybe someone can tell me where I'm going wrong.

1. I publish my project for the web.

2. I copy and paste all of the published files over to my sharepoint. 

3. I "check-in" every single file (a painstaking process)

4. I right-click on the .html file to get the link

5. I create a 'Page Viewer Web Part' page on Sharepoint Online

6. I open the web part's tool pane and paste the link to the .html file

7. I click 'Test link' and it attempts to download the .html file

8. I click 'Ok' on the tool pane and nothing happens, the web part doesn't appear - it acts as though I haven't provided a link, and simply prompts me to open the tool pane again and provide a link

 

I have tried steps 4 - 8 in both Internet Explorer and Google Chrome - is anyone able to help me with this? 

Thank you in advance!