Known Issues & Limitations

Since Hermit is based on WebView (rather than Chromium or Gecko), some features cannot be supported.

SharedArrayBuffer

Comment from Google on https://issues.chromium.org/issues/40914606#comment5:

• “WebView does not support cross-origin isolation at all, regardless of whether web pages opt in via headers. Current versions of WebView only use one renderer process for each Android app that is using WebView, so no isolation is possible. Closing bug, as this is working as intended.”

Clipboard Access

While you can still copy/paste text yourself into text fields in a WebView-based browser, the W3C standard Clipboard API is not supported.

Last update from Google on https://issues.chromium.org/issues/40418964#comment18:

• “Add metrics for permission requests in WebView. These metrics will help us determine how the WebChromeClient.onPermissionRequest and .onShowGeolocationPrompt API are currently being used by apps and websites.”