body:style breaks cosmetic filters

[GHosTiKuS]

URL(s) where the issue occurs

https://kurs.com.ua/novost/21233-na-valjutnom-rinke-perelom-trenda/
But it can be everywhere where is cosmetic filters apply

Describe the issue

I can't fully say that this is issue of uBlock or my misunderstanding but when in 'My Filters' i use this '##body:style(background-image: url() !important; overflow: auto !important;)' cosmetic filters are not applied. But when i open logger and from it refresh page cosmetics applies with some delay. Also sometimes it need second refresh to apply or "unaplly".

Screenshot(s)

As i think screenshot will not describe problem truly. Video will be better (if needed)?

Versions

• Browser/version: Chromium 58.0.3029.110 (64-bit)
• uBlock Origin version: v1.12.4

Settings

Settings:

• Disable tooltips (on)
• I am an advanced user (on)
• Prevent WebRTC from leaking local IP addresses (on)
  3d-party filters:
• RUS: BitBlock List (Дополнительная подписка фильтров) (added)
• RUS: RU AdList (Дополнительная региональная подписка) (added)
  My filters:
• filter (in description) and other cosmetics

Notes

As i pointed in description i tried catch this "bug" in logger but no luck. Maybe i not clearly understand how to use cosmetic filters with explicit style properties?

[gorhill]

##body:style(background-image: url() !important; overflow: auto !important;)

This filter is not valid for two reasons:

• It's generic, while it should be specific;
• It has a url() property, not allowed.

See https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#style.

[gorhill]

Another issue, is that even with a valid cosmetic filter, the page removes all of uBO's injected styles. This sort of behavior was reported here.

In such case, use Firefox, it does support real user styles.

[gorhill]

This also works as far as I can tell:

kurs.com.ua##script:inject(csp.js, script-src https: http: 'unsafe-inline')

[GHosTiKuS]

You'r great! Thank you for detailed response! With your code i don't even need add to Tampermonkey 'RU Adlist JS Fixes'

[gorhill]

I think some functionality are broken on some pages though. Using Firefox is the best fix though, Chromium-based browsers do not support user styles yet, it might even take a while before they do.