bug #11319 [HttpKernel] Ensure the storage exists before purging it in ProfilerTest
minor #11321 [HttpKernel] Ensure the storage exists before purging it in ProfilerTest (penyaskito)

This PR was merged into the 2.3 branch.

Discussion
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[HttpKernel] Ensure the storage exists before purging it in ProfilerTest

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #11319
| License       | MIT
| Doc PR        | None

Commits
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eb63270 bug #11319 [HttpKernel] Ensure the storage exists before purging it in ProfilerTest