Google Chrome not launching on Ubuntu even after installing it [closed]

OS: Ubuntu 16.04.3 LTS

1. I was trying to run unit test for an angular project using ng test but it failed to start browser giving error ERROR [launcher]: Cannot start Chrome.

2. Even puppteer only runs in headless mode, for headless: false it gives error UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: Failed to launch chrome!

3. Also on xdg-open https://example.com it gives the log

   /usr/bin/xdg-open: 778: /usr/bin/xdg-open: www-browser: not found/usr/bin/xdg-open: 778: /usr/bin/xdg-open: links2: not found/usr/bin/xdg-open: 778: /usr/bin/xdg-open: elinks: not found/usr/bin/xdg-open: 778: /usr/bin/xdg-open: links: not found/usr/bin/xdg-open: 778: /usr/bin/xdg-open: lynx: not found/usr/bin/xdg-open: 778: /usr/bin/xdg-open: w3m: not foundxdg-open: no method available for opening 'https://example.com/

So it's safe to say there's a problem with Chrome, and not the application/technology I am running.But I also installed google chrome using the following

wget https://dl.google.com/linux/linux_signing_key.pubsudo apt-key add linux_signing_key.pubsudo apt updatesudo apt install google-chrome-stable

and yet, nothing changed.

EDIT

the /usr/bin/xdg-open file has the following, if it helps

# if BROWSER variable is not set, check some well known browsers insteadif [ x"$BROWSER" = x"" ]; then    BROWSER=www-browser:links2:elinks:links:lynx:w3m    if [ -n "$DISPLAY" ]; then        BROWSER=x-www-browser:firefox:iceweasel:seamonkey:mozilla:epiphany:konqueror:chromium:google-chrome:$BROWSER    fifi