Issue #3519266: No need Node.cloneNode() in Drupal.url.toAbsolute()

Closes #3519266

added 44 commits

• 94b15750...1a2079a4 - 42 commits from branch project:11.x
• f224941f - Remove node cloning and comment for IE <= 7
• 1d0f1212 - Remove a @see comment

Compare with previous version

closed