Issue8141/support safari extensions

[Kjoep]

↪️ Pull Request

Adapt parcel js runtime to also support safari extensions.
Fixes #8141

💻 Examples

Any webextension build with parcel that uses getBundleUrl/getBaseUrl/getOrigin should now function.

🚨 Test instructions

This can only be tested by building a webextension and running it on safari. Note that to do this, you need to package the webextension as an OSX application using xcode.

In your extension, add an asset (let's say test.png). Then add code as follows to your content script:

    import icon32 from '~/assets/test.png';
    const icon = document.createElement('img');
    icon.src = browser.runtime.getUrl;
    document.querySelector('body').appendChild(icon);

this should add the test image to the document body when your extension is applied (i.e. the import resolves to a safari-web-extension:// url at runtime).

[101arrowz]

Looks good for the most part, just a few questions.