If all else fails check for a commented <body> tag before your <body> tag within the source code. Right-click the page and select View Page Source to eliminate this cause.
<!-- <body><script id="__bs_script__">//<![CDATA[
document.write("<script async src='/browser-sync/browser-sync-client.js?v=2.26.3'><\/script>".replace("HOST", location.hostname));
Browsersync appends its Java script after the first <body> tag it finds regardless of whether it is embedded in a comment or not! Obviously, being wrapped in a comment effectively disables it from injecting or refreshing the page.
Prepare the Screen
Turn the monitor off. Do not clean a screen until it is cool. Remove as much dust from the screen as possible without actually touching it, e.g. vacuum or blowing . Use a soft lens brush to remove stubborn dust. Lightly wipe the screen with a dry and clean microfiber cloth. Shake out any dust from the cloth between wipes to avoid rubbing dust into the screen and scratching it. Don’t use paper towels, kitchen towels or household rags. Only a good quality lint-free microfiber cloth should touch your screen.
Cleaning the Screen
Lightly wipe the screen with a microfiber cloth dampened with a 50/50 distilled water and white vinegar mixture.This will cut through everyday finger prints,and grease stains. Do not under any circumstances spray the screen directly! This will create difficult to remove streaks.
When wiping the screen, always avoid making circular “buffing” motions. Clean with a slow and light touch moving in as broad a motion as you can either left to right or up and down across the screen. Although the microfiber should pose little to no risk to the screen, by avoiding cleaning in small circular motions you avoid the risk of creating buffed out spots or whorl marks on the surface of the screen. Light pressure and wide movements are the safest.
Wipe up any excessive moisture with microfiber cloth. Once clean to your satisfaction let the screen air dry before turning on the monitor.
The cleaning solution should be made up with 50/50 distilled water + distilled vinegar and stored in an empty atomiser spray container or empty domestic spray cleaner bottle. The screen cleaner container must be clearly labelled to avoid misuse. Example ingredients are Halfords de-ionised water and Sarsons White Vinegar. Search eBay for suitable empty 100ml atomisers or other size of your choice.
You can use “Waitrose 4 Specialist Microfibre Cloths” or Spontex microfibre all purpose cloth (5 pack) or any other good quality lint-free microfibre cloth.