Apache (WHM) + InstantPage extremely slow on mouseclick
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I have just setup a new DO droplet, and on all my sites in the past, I use Instantpage with the mouseclick intensity.
On the new droplet, with the exact same settings... it causes the pages being prefetched to have extremely high TTFB when cache is disabled.
Devtools -> disable cache -> TTFB with IP: 1.5+ seconds! (150ms first hit, 1.5s afterwards, it's like it won't load the prefetch).
Removing the Instantpage code completely resolves this issue.
Any idea what could be causing this to happen? Did I miss an Apache setting?
Edit: Just tested with non-mouseclick, and it seems to work alright... but I would prefer to use the mouseclick version. Doesn't make sense to me why it would slow down my pages so much.
This may be due to HTTP headers conflicting with prefetching; making the prefetched asset unused and fetching it again right after. Send me a link to your site (here or via email) and I’ll have a look.