Uncaught TypeError: Cannot read property 'replace' of undefined

The patch needs a reroll for 10.x as there is no longer an ajax.es6.js file

Works good in 10.0.x , see https://github.com/YCloudYUSA/yusaopeny/pull/84

It's a bug, not a feature, so can be merged

Could someone post what are the steps for reproducing this? First step would be to be able to at least manually test this, then we can reassess if this needs automatic tests.

It occured on my project when somebody added html like that:
<a class="use-ajax">Open dialog</a>
without href parameter. Then, when you click on the link, you can see error in browser console.

Steps are here https://www.drupal.org/project/drupal/issues/2922677#comment-15164221 🐛 Uncaught TypeError: Cannot read property 'replace' of undefined Postponed: needs info

I think we can add test coverage of that then. Also I think we should be converting to an MR so we can have a more recent test run.

I've converted the latest patch to an MR and cleaned up the issue description. Still needs tests.

Creating patch for D10.2.x version