Let's discuss updating TaskMuncher to address some Lighthouse findings.

TaskMuncher

For extensive discussions regarding TaskMuncher, please see TaskMuncher Overview

Lighthouse Scores after the work is complete

www.taskmuncher.com

90: Performance
100: Accessibility
100: Best Practices
100: SEO

Lighthouse Findings

Lighthouse suggestions follow

Best Practices

Does not use HTTP/2 for all of its resources

A request not served via HTTP/2

/site.webmanifest

This doesn't make sense. Let's check.

Verify ngxinx version

nginx -v
nginx version: nginx/1.10.3 (Ubuntu)

which supports HTTP2

Check server block

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    include snippets/ssl-taskmuncher.com.conf;
    include snippets/ssl-params.conf;
    include h5bp/basic.conf;

which looks good.

curl -I -k --http2 https://www.taskmuncher.com/site.webmanifest

curl -I -k --http2 https://www.taskmuncher.com/site.webmanifest
HTTP/2 200 
server: nginx

which also looks good.

Probable problem

The nginx MIME type is not known for file type .webmanifest

Solution

So rename site.webmanifest to app-manifest.json

and change index.hbs

<link rel="manifest" href="/app-manifest.json">

which still failed.

Refreshed and tested again and the problem appears to be fixed.

Accessibility

Contrast problem.

Background and foreground colors do not have a sufficient contrast ratio.

Failing Elements
<a class="jss46 jss63 jss75 jss72 jss3" href="/"><svg class="jss81" aria-hidden="true"><use xlink:href="/assets/icons.svg#icon-monster"></use></svg>TaskMuncher</a>
<span class="jss87">Terms of Service</span>
<span class="jss87">Privacy Policy</span>
<span class="jss87">Contact</span>
<a href="https://www.taskmuncher.com" target="_blank" class="sc-bwzfXH cZRhpi">© 2019 TaskMuncher</a>

The only way to solve this is to darken the background.

HomeLayoutStyles.jsx added

backgroundColor: theme.palette.primary.dark

appBar: {
	display: 'flex',
	minHeight: `calc(2 * ${topNavLineHeight}px)`,
	justifyContent: 'space-between',
	backgroundColor: theme.palette.primary.dark
},

MemberLayoutStyles.jsx added

backgroundColor: theme.palette.primary.dark

appBar: {
	position: 'absolute',
	transition: theme.transitions.create(['margin', 'width'], {
		easing: theme.transitions.easing.sharp,
		duration: theme.transitions.duration.leavingScreen
	}),
	backgroundColor: theme.palette.primary.dark
},

FooterStyles.jsx changed color to dark from main

export const Container = styled.footer`
	background-color: ${appTheme.palette.primary.dark};
	display: flex;
	flex-direction: row;
	justify-content: center;
	padding: 10px 0px;
`;