MarkupBrowserUpdate
Processwire's browser-update.org plugin
Adds the script from browser-update.org to the frontendpages before the </body> tag
Settings for browserversions are available, but the built in automatic from browser-update.org is recommended for normal usage.
For testing propose the output in frontend could set to 'true' so it shows regardless witch browser or version is used.
Install and use modules at your own risk. Always have a site and database backup before installing new modules.