Servicenow to Jira Integration on premise using Jira spoke.

Hello Devs,

I am trying to integrate service now Jira using Jira spoke/integration hub, have followed the below 2 articles we have an on premise Jira server that uses only basic auth, I have set up a mid server and we created a user profile set up for access to Jira that we use in basic auth credentials.

1. https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0792632

2. https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0760302

I am facing the below problems:

1. There is a client script error on http connection (attached image), not sure if it can be Ignored as I have checked the client script as well(attached image).

2.When trying to create Issue in flow designer not able to fetch project key and Issue type.

Have gone extensively through community and support articles please help/suggest on how to create Integration.

PS: Please don't post third party tools, we have no intention of using them.

Regards.