Is there a solution to this? Keen to use this feature as well. 

Hi there, 

I’m afraid we do not support Atlassian links -  it’s technically impossible at the moment due to the restrictions on Confluence’s end.

@Marina I encounter the same problem. Miro integration in Confluence works fine, so do Jira tickets on a Miro board. But when I copy-paste a Confluence link into Miro, I always end up with that authentication widget. If Atlassian wont move and provide a solution, can you change the behavior of the copy-paste function in Miro? The current solution is suboptimal, as you end up with the same widget and can’t distinguish the links, so you’ll have to open a text element and then paste the link into it. Making it a text element with a link right away would be more convenient at the moment and unless Atlassian fixes the stuff on their side.