bug(MatSelect): With Mac VoiceOver + Safari, mat-select is not expanding by hitting control + option + space keys

[rehoulihan]

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

No response

Description

Safari + VoiceOver does not open mat-select when you hit control + option + space keys. It works fine in Chrome, but not Safari.

Reproduction

Steps to reproduce:

Access https://material.angular.io/components/select/overview in Safari
Turn on voiceover
Navigate to mat-select with tab key
VoiceOver tells you to view the options by hitting control + option + space keys
Hit control + option + space keys
The mat-select does not open

Expected Behavior

Mat-select should open and you should view the list of mat-options.

Actual Behavior

The mat-select does not open.

Environment

Angular: v11, v12, v13
CDK/Material: Material
Browser(s): Safari
Operating System (e.g. Windows, macOS, Ubuntu): macOS

[zarend]

Assigning to myself to reproduce this and debug it.

[zarend]

Confirming I can still reproduce.

• macos 12.6.1 (21G217)
• Safari Version 16.1 (17614.2.9.1.13, 17614)
• VoiceOver