Image pulled from cache after applying filter

[cyaugin]

I used the element picker to block an image being used as a background image. Both the preview and the immediate application of the filter works as expected - the image disappears. I then reload the page, and the image returns. After puzzling it out for a bit, I realize the issue is the browser cache (Firefox). For some reason the image still loads from it. After I force a purge reload (Ctrl+F5) then the filter sticks.

Is not blocking cached images an oversight in ubo or is Firefox sneaking the image back in from cache not possible to address in the extension?

[ghost]

It should be fixed soon https://bugzilla.mozilla.org/show_bug.cgi?id=1657575#c4

[redtrash007]

I’ve been having this issue, and it looks like it still hasn’t been fixed even after 8 months.
If I block an image, it disappears. But if I block another one, the previous image reappears while the new one disappears. If I refresh the page normally, both images may reappear; if so to make sure they don’t, I have to do a hard refresh with Shift + F5.
When I used this extension on Chrome, the issue wasn’t around. However, after switching to Firefox, the problem appeared. So yes, it seems that Firefox is responsible.

[u-RraaLL]

I can't reproduce images coming back after a reload. Are you using an up-to-date version of Firefox? It should work on FF 138+.

The issue or images "reappearing" when you block more images on the same page load is pretty minor. It's because uBO is using a trick to temporarily hide these images while waiting for a page reload.

[freezer2022]

cyaugin: Image pulled from cache after applying filter
redtrash007: I’ve been having this issue

Already documented in Wiki several years ago, also a duplicate of:

• Dynamic Filter: 3rd party scripts not blocked if in cache #893
• Refresh button in pop up uBO after block web font not work in Opera gorhill/uBlock#2766
• can't block background picture from gta.fandom.com #1107
• gif at the bottom of the page unblockable #3299
• Does not block some elements on US bank site #3349

Besides, when reporting issues, always provide an example: a website link and steps to reproduce, otherwise there is too much speculation and guesswork, especially given a fact that some issues might look similar, but still might turn out to be different.

[gothic-bum]

https://github.com/gorhill/uBlock/wiki/Element-picker#element-picker-does-not-work-removed-element-reappears-when-you-reload-the-page