The setting @julian describes belongs to the browser (chrome/chromium in this case), not NodeBB.
If you're using chrome/chromium, press F12, then F1 to show the options. Check the option and keep the tools open while refreshing the page to ensure the cache is disabled.
@a_5mith tnx for replay smith. What we need is to have option for users to upload big images like 5mb, but we wanna display it in category listing as a smaller image, not whole 3000px image. So is there anyway we can get two images when users uploading it ? One with original size, and another which will be resized and showed under listing as many posts on same page.
And yes, it's being uploaded and hosted on our server.