Abort-on-property-read cannot be used on different children on same object

[liamengland1]

Prerequisites

• [x] I verified that this is not a filter issue
  • Filter issues MUST be reported at filter issue tracker
• [x] This is not a support issue or a question
  • Support issues and questions are handled at /r/uBlockOrigin
• [x] I performed a cursory search of the issue tracker to avoid opening a duplicate issue
  • Your issue may already be reported.
• I tried to reproduce the issue when...
  • [x] uBlock Origin is the only extension
  • [x] uBlock Origin with default lists/settings
  • [x] using a new, unmodified browser profile
• [x] I am running the latest version of uBlock Origin
• [x] I checked the documentation to understand that the issue I report is not a normal behavior

Description

Abort-on-property-read cannot be used on different children on same object

A specific URL where the issue occurs

https://www.foreignaffairs.com/articles/united-states/2020-08-06/pandemic-hasnt-killed-populism/

Steps to Reproduce

1. Add

   foreignaffairs.com##+js(aopr, Drupal.AjaxCommands)
   foreignaffairs.com##+js(aopr, Drupal.behaviors.newsletter_offer_overlay)

   to my filters

2. Visit https://www.foreignaffairs.com/articles/united-states/2020-08-06/pandemic-hasnt-killed-populism on default settings

Expected behavior:

Not see the newsletter modal

Actual behavior:

The newsletter modal appeared

Your environment

• uBlock Origin version: 1.28.4
• Browser Name and version: Chrome 84.0.4147.105 / Firefox 79.0
• Operating System and version: Windows 10

This is basically https://github.com/uBlockOrigin/uBlock-issues/issues/156 and https://github.com/uBlockOrigin/uBlock-issues/issues/1162#issuecomment-660569797 but for abort-on-property-read

[gorhill]

What is the purpose of foreignaffairs.com##+js(aopr, Drupal.AjaxCommands)?

[liamengland1]

I was writing rules to bypass the paywall on that website (I maintain a list for this).

foreignaffairs.com##+js(aopr, Drupal.AjaxCommands)
foreignaffairs.com##.paywall
foreignaffairs.com##.loading-indicator
foreignaffairs.com##.article-dropcap:not(.loaded):style(height:inherit!important;overflow:visibile!important)

foreignaffairs.com##+js(aopr, Drupal.AjaxCommands) stops the websites from deleting paragraphs of the article when it detects you are not a subscriber.

I was going to add foreignaffairs.com##+js(aopr, Drupal.behaviors.newsletter_offer_overlay) to address the newsletter overlay, however it did not work (this bug). I wanted to use the aopr rule because it is shorter than the cosmetic version (two rules - hide the modal and restyle the body to overflow:visible).