cv-tabs fails in focusout event when using router-link in a tab

[Fontinalis]

Detailed description

Describe in detail the issue you're having.

We use NuxtJS in one of our projects and have @carbon/vue for UI elements. On one of our "detailed view", we use the cv-tabs and cv-tab components and we have a router-link in one of the tabs. The issue we are experiencing is that after clicking on the router-link in a cv-tab, the cv-tabs component's focusout event listener gets called and uses the trigger reference as a parameter in a window.getComputedStyle function call, which raises the following error:

client.js?06a0:96 TypeError: Failed to execute 'getComputedStyle' on 'Window': parameter 1 is not of type 'Element'.
    at VueComponent.onFocusout (cv-tabs.vue?e464:125)
    at invokeWithErrorHandling (vue.runtime.esm.js?2b0e:1854)
    at HTMLDivElement.invoker (vue.runtime.esm.js?2b0e:2179)
    at HTMLDivElement.original._wrapper (vue.runtime.esm.js?2b0e:6917)
    at Object.removeChild (vue.runtime.esm.js?2b0e:5713)
    at removeNode (vue.runtime.esm.js?2b0e:5884)
    at remove$$1 (vue.runtime.esm.js?2b0e:5873)
    at eval (vue.runtime.esm.js?2b0e:7695)
    at eval (vue.runtime.esm.js?2b0e:336)
    at whenTransitionEnds (vue.runtime.esm.js?2b0e:7391)

Is this issue related to a specific component?

Yes, this is related to the cv-tabs component.

What did you expect to happen? What happened instead? What would you like to see changed?

I would expect to navigate to the page with the router-link without an error, but the next page fails to load because of this issue.

What browser are you working in?

Google Chrome 87.0.4280.67

What version of the Carbon Design System are you using?

I'm experiencing the issue in the latest v1.35.0 version too. Based on the commit history and my own experience, this bug is in there since multiple versions.

What offering/product do you work on? Any pressing ship or release dates we should be aware of?

My project has a strict deadline, so this issue is a high priority for me and my team, I'm creating a PR really soon which I hope you can review and merge if you find it correct.

[Fontinalis]

This might be on our end, because we wrap tabs, tags and a few other ones into one component, so I'm looking into it.

UPDATE:
No, turns out it's not that. I can reproduce the issue with the following:

<cv-tabs>
   <cv-tab
      id="tab-1"
      label="Test tab"
      :selected="selected"
      >
        <router-link to="/some/other/page">
         example link
      </router-link>
   </cv-tab>
</cv-tabs>