Originally Posted by
jethro15
Scrolling through threads no problem, then all of a sudden when clicking on a new link the site freezes for about 15/20 seconds.
In the bottom left hand corner there is a message ' Waiting for Polyfill.io...'
Any ideas what this is. Is it an issue with my pc or PPRuNe?
Polyfill is a resource which supplies missing features to web browsers which don't support that feature - generally because they're too old. The code for these features has to be accessed separately and may be less efficient than native browser code.
It would certainly be worth making sure you're running the latest version of your chosen browser.