output: not able to save the js part of the output windows as html + js dependencies

[jmcouffin]

Describe the bug
When using preflight to generate the report we use the chart.js module to print doughnut charts in the output window. When using the save button of the window, it saves it as html but does not take into account the chart part.

To Reproduce
Steps to reproduce the behavior:

1. run preflight checks
2. Click on 'save' in the output window
3. Open the saved file in chrome
4. no js charts displaying

Expected behavior
saving the full content of the output window

Screenshots
missing chart in yellow

Desktop (please complete the following information):

• develop branch

[eirannejad]

Huh! Seems like the combination of defer and async are causing issues. Removing them runs the chart code properly. I'll fix this

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.js" defer="" async="true"></script>