`chrome` variable not given in option page for iOS

from https://orionfeedback.org/d/284-essential-browserchrome-variable-not-given-in-background-and-option-pages

Steps to reproduce:

Insert the following debug code in option page.

alert(globalThis.chrome);
await chrome.storage.local.get(null);

Open the option page by calling chrome.runtime.openOptionsPage() from background page.
Then appears 2 dialogs.

Expected behavior:

chrome variable can be accessed from option page.

Orion, OS version; hardware type:

• Orion
  • v1.2.10 (2) (WebKit 8615.2.9.10.6)
• OS version
  • iPadOS v16.5.1
• hardware type
  • iPad (10th generation)