HTML Filtering + Back button

[huubert]

Describe the issue

uBlock will filter an element using a ^ filter, but after following a link to another page and then coming back to the initial one using the browser's Back button, the element won't be blocked.

One or more specific URLs where the issue occurs

https://www.reddit.com/r/popular/?geo_filter=GLOBAL

Screenshot in which the issue can be seen

https://i.imgur.com/GIAbrJu.png

Steps for anyone to reproduce the issue

1. Add this custom filter: reddit.com##^.listingsignupbar
2. Go to https://www.reddit.com/r/popular/?geo_filter=GLOBAL and make sure you're logged out
3. Click any "comments" link
4. Click the Back button
5. The "Welcome to Reddit" bar is not blocked anymore

Your settings

https://i.imgur.com/CMLVRLc.png

• OS/version: Windows 7 Ultimate 64-bit
• Browser/version: Firefox Quantum 59.0.1 (64-bit)
• uBlock Origin version: uBlock Origin v1.15.16

Your filter lists

https://i.imgur.com/2padiwp.png

Your custom filters (if any)

reddit.com##^.listingsignupbar

Edit:
This doesn't happen when using Private Browsing, so I assume it has something to do with caching.

[huubert]

I forgot to mention it doesn't always happen, but if I try it at least 5 times, it does.

Edit:
I tried disabling all my other addons (uMatrix and HTTPS Everywhere), completely cleaning my browser history, and restarting it, and afterwards I was able to reproduce this issue the first time around.
It definitely has something to do with the browser caching, as if I click "comments" links that I already clicked before, the issue doesn't happen. So, I guess uBlock can't modify the HTML if it's already cached by the browser?

[huubert]

Is anyone looking at this? I can help with anything else that would be needed to reproduce this.

[huubert]

Hello?

[grenzor]

I also came across this issue when using a HTML filter on a different site a week ago but I remember I couldn't reproduce it every time (happened like 1 out of 10 times from memory). Will post a site with details if I reproduce this again.

[ghost]

@huubert @grenzor can you try this dev version https://github.com/gorhill/uBlock/releases/tag/1.16.7b0 ? Should be fixed by uBlockOrigin/uBlock-issues#42

[gorhill]

Most likely same issue solved in uBlockOrigin/uBlock-issues#42.