Add Safari support

[alexanderatallah]

• I should be able to install it in Safari and also on Safari mobile.
• Should be able to leverage Plasmo and bugs they've fixed recently (e.g. https://github.com/PlasmoHQ/plasmo/issues/463)
• The Extension module in core/extension.ts should prob be the only place with Safari-specific code - the rest of the extension shouldn't care about the platform.

This will allow iOS users to use window apps!

[louisgv]

This will likely be blocked by either:

https://github.com/PlasmoHQ/plasmo/issues/521

Or Plasmo should just spit out the safari bundle <- I will investigate this.

[louisgv]

Popups and stuffs are good to go on Safari. The BGSW tho has some problems - I suspects some API incompatibility.

[louisgv]

I think it's impossible to debug Safari Service Worker lol - it shows only "Service Worker failed to load"...

[louisgv]

Blocker for older Safari:

scripting registerContentScripts, getRegisteredContentScripts, unregisterContentScripts, updateContentScripts supported in Safari 16.4 or later.

The mainworld script injection requires the above APIs.

https://developer.apple.com/documentation/safariservices/safari_web_extensions/converting_a_web_extension_for_safari

Some other refs:

• https://github.com/forem/forem/issues/5434

[louisgv]

It works!

Key requirement is latest MacOS Ventura 13.3.1 (22E261) with Safari 16.4

A patch on Plasmo side is needed to fix up some undefined lookup, will PR in a bit.

[alexanderatallah]

This is awesome 🔥

I'll need to update my system to 16.4 before I can test (we'll want to check mobile Safari support too). But this is going to be even more amazing once people have a nice way of sharing credentials between desktop and mobile, coming soon