Include Link Sanitize tests from D7 contrib module

This is a follow-up to https://www.drupal.org/sa-contrib-2022-034, where we identified that the same vulnerability does not exist in Backdrop core. We would like to include the same sanitization tests, so that we can continue to test sanitization against any future changes to link handling.

GitHub Link:

https://github.com/backdrop/backdrop-issues/issues/5613

GitHub Issue #:

5613

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Recent comments

Sorry, it did seem confusing when I read it back... So if I add some html to a text field, for example in a page or a block, whatever the text format of the field may be (raw html or basic...

Posted 14 hours 28 min ago by (beckdalecreative) on:

Problems with HTML content and text formats

Could you please post clear, step by step instructions to reproduce the problem? Your first message refers to HTML content, and your second to text formats. Please add details to reproduce each...

Posted 18 hours 13 min ago by Alejandro Cremaschi (argiepiano) on:

Problems with HTML content and text formats

Just confirmed that this issue is happening when I install backdrop via ftp. It's not possible for me to add or edit and text formats, even if ckeditor is disabled. This is a clean install...

Posted 19 hours 21 min ago by (beckdalecreative) on:

Problems with HTML content and text formats