Thread:Extension talk:CategoryTree/ + Somtimes Not Showing

Seems to be similar with topic below... but different in details.

For the first 3~4 times of refreshing a category page after starting up a new browser, the [+] sign does not show up. After more retry of refreshing the page, the [+] show up evetually.

Both(with [+] and without [+]) HTML codes are exactly the same. So, I guess the browser fails to show the [+] sign.

What can affect the web browser showing the [+] sign?