How best to diagnose MacOS webview compatibility issues?

[boan-anbo]

I have a Tauri 1.3 app that runs fine on every platform that I've tested except for MacOS Big Sur and Mojave.

On both these versions, the backend loads without issue, but the front end is blank.

If the front (React) is served by itself, it renders ok in the browser. But when it's rendered through Tauri in dev or production, it's blank.

I've checked the doc such as https://tauri.app/v1/references/webview-versions/, and am aware there are ways to check for specific webview functions.

But the issue is that I don't know what's missing or even what went wrong since the Tauri webview console is blank as well.

Please let me know if there are clues about how to get started debugging this kind of issue. Thanks!