It does not valid, i had already reload or restart my forum, and when i access "*/uploads/system/gravatar-default.png" i could see the image what i upload, but it didn't apply to a new user.
@fortunato I forgot to say that this error doesn't show up when creating a new topic and sometimes it works also in replies. The error in the NodeBB UI is the following: "stream ended unexpectedly"
Especially in my iPhone, when I scroll up, the image of replies from 1-5 can not be shown sometimes, around 80% times.
I had a short analyze about this, found the hidden image tag data-state always stays 'loading'.
In my laptop, around 20% times it will not be shown.
Is is caused by network condition? or it's a bug in image.js?