how to fix 304 - not modified error with wordpress?


Staff member
I just freshly installed wordpress 4.8 and accessPress Parallax for theme (<a href="" rel="nofollow noreferrer"></a>).

Now I see that, there's no parallax effect and responsive menu not working on mobile view. I suspect this has something to do with js files not loaded?

I checked the network tab and found many js files returning 304 error.
<a href=" " rel="nofollow noreferrer"><img src=" " alt="enter image description here"></a>

What does the 304 means here? How can I fix this? Currently I'm running on localhost.