uBlock | uBlock Origin - An efficient blocker | Privacy library

I trying to blur or hide runner thumbnails on various streaming sites (PrimeVideo for example) I use Amino: Live CSS Editor chrome extension in most cases or uBlock Origin when I hide or blur certain elements from websites. But I can't understand how to blur that element. I mean these runner thumbnails don't even have divs, they just appear when you hover your mouse over progress bar and then disappear. With this css:

I am using fetch in a NodeJS application. Technically, I have a ReactJS front-end calling the NodeJS backend (as a proxy), and then the proxy calls out to backend services on a different domain.

However, from logging errors from consumers (I haven't been able to reproduce this issue myself) I see that a lot of these proxy calls (using fetch) throw an error that just says Network Request Failed, which is of no help. Some context:

• This only occurs on a subset of all total calls (lets say 5% of traffic)
• Users that encounter this error can often make the same call again some time later (next couple minutes/hours/days) and it will go through
• From Application Insights, I can see no correlation between browsers, locations, etc
• Calls often return fast, like < 100 ms
• All calls are HTTPS, non are HTTP
• We have a fetch polyfill from fetch-ponyfill that will take over if fetch is not available (Internet Explorer). I did test this package itself and the calls went through fine. I also mentioned that this error does occur on browsers that do support fetch, so I don't think this is the error.
• Fetch settings for all requests
  • Method is set per request, but I've seen it fail on different types (GET, POST, etc)
  • Mode is set to 'same-origin'. I thought this was odd, since we were sending a request from one domain to another, but I tried to set it differently and it didn't affect anything. Also, why would some requests work for some, but not for others?
  • Body is set per request, based on the data being sent.
  • Headers is usually just Accept and Content-Type, both set to JSON.

I have tried researching this topic before, but most posts I found referenced React native applications running on iOS, where you have to set some security permissions in the plist file to allow HTTP requests or something to do with transport security.

I have implement logging specific points for the data in Application Insights, and I can see that fetch() was called, but then() was never reached; it went straight to the .catch(). So it's not even reaching code that parses the request, because apparently no request came back (we then parse the JSON response and call other functions, but like I said, it doesn't even reach this point).

Which is also odd, since the request never comes back, but it fails (often) within 100 ms.

My suspicions:

1. Some consumers have some sort of add-on for there browser that is messing with the request. Although, I run with uBlock Origin and HTTPS Everywhere and I have not seen this error. I'm not sure what else could be modifying requests that would cause it to immediately fail.
2. The call goes through, which then reaches an Azure Application Gateway, which might fail for some reason (too many connected clients, not enough ports, etc) and returns a response that immediately fails the fetch call without running the .then() on the response.

For #2, I remember I had traced a network call that failed and returned Network Request Failed: Made it through the proxy -> made it through the Application Gateway -> hit the backend services -> backend services sent a response. I am currently requesting access to backend service logs in order to verify this on some more recent calls (last time I did this, I did it through a screenshare with a backend developer), and hopefully clear up the path back to the client (the ReactJS application). I do remember though that it made it to the backend services successfully.

So I'm honestly not sure what's going on here. Does anyone have any insight?

I'm using MoonPay for crypto purchasing in my Vue app, but uBlock Origin is blocking its IP address detection which blocks it from loading.

It doesn't seem to be an issue on other adblockers, so I'd like to display a message to the user if the user has uBlock Origin installed, however the issue doesn't seem to occur with other adblockers.

Is there a way to detect any one single adblocker, or a package which can return a string of the adblocker currently active?

I'm trying to keep count of the visitors to my blog (I'm using a static site published on Github Pages) and for that purpose I'm using Google Analytics 4.

But I realized that ad blockers such as uBlock Origin block request to tag manager or analytics domains and even URL path segments like /gtm.js or /gtag/js?, see EasyPrivacy. So making the metric not very realistic as many people is using browser ad-blocking extensions.

I've been reading recent articles about server side tagging, and how it can be used to deploy an App Engine instance for Tag Manager, and bypass ad blocking (between other goals). But as far as I can understand, doing it this way could bypass the domain blocking (e.g. www.googletagmanager.com), as tag manager becomes a first-party under your managed domain. But not to circumvent the blocking rules based on URL path. So,

1. Is there any way to configure the server side tag manager to serve the JS scripts in different custom paths so that become impossible to block? If so, how can it be configured?

2. In case it's possible, should I use directly the analytics script?

Twitter has started adding "follow topic" posts interspersed with the normal home timeline. I'd like to filter them out. Twitter actively obfuscates the timeline source to hinder efforts like this.

Here's what I understand about the theory: the rule should be able to identify a post containing a deeply nested child that has the text "Follow Topic" in it, like so:

img1

then it should filter the post containing such a span, which would be this parent level

img 2

In practice I got as far as

I am using an external API and part of the parameter of the API is an IP address. I looked up how to do it and I used the ipify version in this answer because it has no limitations. Here is the script:

uBlock is blocking an ad from some website, but it leaves the large (in height) div which expands the site after loading and pushes the main text down. Using "Block is element" gives me

I'm using firefox v84 (latest atm) and i also have ublock installed. Firefox is set to block popups in it's settings, but i still get them (although rarely) from some sites. They pop up as very small windows at the corner of the screen. Sometimes it shows "firefox blocked popup", sometimes it doesn't. I remember reading about javascript trickery to somehow create popup windows even though it's blocked in the browser (so somehow it's still possible).

Anyways, my main question is, how can a browser not be able to block the popups? I'm a programmer myself and i know that, for example, in windows environment, if you want to create a window, you need to call the windows api, and relevant functions (CreateWindowEx etc) to do that (even if you don't do it explicitly, that's what happens under the hood). Browser is also responsible for reading parsing and executing the javascript code. So just simply do NOT call the CreateWindow function, it should be that easy, is it not? Why is this still a problem, and why can't browser developers solve this?

I want to stop a javascript .js to load on a specific website with greasemonkey/violentmonkey scrpit