Hello,
I know this is not a GP issue…
But, You can find out the trouble.
When I Enable CDN, Then Search Box from menu bar disappear.
I have written a details here – https://wordpress.org/support/topic/top-nav-bar-search-button-disappearing-after-enable-cdn/
Kindly check and tell me, which file cause this error.
if you can provide me with some suggestions to avoid this… it will be great.
meanwhile, I would like to say… I have tried the plugin support method. that not work.
now the cache plugin is enabled – but optimization is OFF.
NB: it happens only when CDN Enable – not optimizations.