Problems with asterisk in the destination of hostname-based rules

[sagehane]

Prerequisites

• This is not a support issue or a question
  • Support issues and questions are handled at /r/uBlockOrigin
• 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...
  • uBlock Origin is the only extension
  • uBlock Origin with default lists/settings
  • using a new, unmodified browser profile
• I am running the latest version of uBlock Origin

URL(s) where the issue occurs

uBO dashboard

Describe the issue

How to reproduce:
When adding a rule such as * whatever://* * noop and clicking "Save".
The page will freeze until refreshed.
The whatever can be replaced by anything, but can't be empty.

Effect:
The list of rules become blank until the temporary rule is removed by disabling and re-enabling uBO.
The rest of the functionality seems to be fine.

Screenshot(s)

Before:

After:

Versions

• Browser/version: Firefox/84.0.1
• uBlock Origin version: 1.32.2

Settings

Medium Mode with remote fonts disabled:

• no-remote-fonts: * true
• * * 3p-frame block
• * * 3p-script block

Notes

None. I strongly hope this was the right repo to report the issue, and that it's not a duplicate.

[gorhill]

I published an emergency revision because this wholly breaks thre "My rules" pane -- the error is that I simply forgot to import punycode.js library.