[PWA-496] [bug]: Not loading Magento2 media image in PWA

[tjwiebell]

Description

makeUrl utility doesn't support backend setups that have a path in them. See #2252 for full description.

After this fix, you will still be required to update your upward.yml to the path of your media if it isn't in the standard location of /media. I am comfortable with this, as it should only be necessary in development environments.

Related Issue

• [PWA-496] [bug]: Not loading Magento2 media image in PWA
• Closes [bug]: Not loading Magento2 media image in PWA #2252

Acceptance

Verification Stakeholders

Specification

Verification Steps

IMAGE_OPTIMIZING_ORIGIN=onboard

1. Setup Venia to use a backing instance with a path in it https://instance.test/with-path/
2. Verify that images load, and image requests are optimized by Venia (hastily header)
3. Use the master backing instance, verify images also still load, and are being served/optimized by Venia

IMAGE_OPTIMIZING_ORIGIN=backend

1. Run through all steps from above, but verify image requests go directly to backing instance

Screenshots / Screen Captures (if appropriate)

Checklist

• I have updated the documentation accordingly, if necessary.
• I have added tests to cover my changes, if necessary.

[PWAStudioBot]

	Messages
📖	Access a deployed version of this PR here. Make sure to wait for the "pwa-pull-request-deploy" job to complete.
📖	DangerCI Failures related to missing labels/description/linked issues/etc will persist until the next push or next nightly build run (assuming they are fixed).

Generated by 🚫 dangerJS against bad7c8b

[sirugh]

I saw you changed one of the tests - does that address the change or do we need to write a new one for this case?