test: ssr-vue example error when routerChanged

[zhangyuang]

Description

In ssr-vue, when i click change router from Home to About and then change router from About to Home will be error caused by below code

// Home.vue
const url = import.meta.env.SSR
  ? import.meta.url
  : document.querySelector('.import-meta-url').textContent

When there code is evaluated, current page dom struct is the page of About.vue without <div class="import-meta-url"></div> node

Additional context

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[zhangyuang]

Mention #5268, even if i reset to this commit, the behavior remain error
cc @patak-js @antfu

[zhangyuang]

@patak-js has removed unused code

[patak-dev]

Could you explain a bit more what this PR is doing? It looks like you extended the test case, and CI is passing with it, but I think I'm missing something about the fix you did here.

[zhangyuang]

If you don't add these code in About.vue, in home page when you click router-link to go to about page which is normal but and then in about page when you click router-link to go back to home page will be error caused by below code

// Home.vue
const url = import.meta.env.SSR
  ? import.meta.url
  : document.querySelector('.import-meta-url').textContent

Because document.querySelector('.import-meta-url') is undefined