I guess it's not a problem on macOS in that case, probably because of IME behavior difference.
>Pressing CMD+Enter triggers a loading spinning circle that is stuck in a loading state across all browsers when an KOREAN IME input is used
That sounds like another type of unexpected behavior 👀
Bug 1576620 Comment 27 Edit History
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I guess it's not a problem on macOS in that case, probably because of IME behavior difference.
>Pressing CMD+Enter triggers a loading spinning circle that is stuck in a loading state across all browsers when an KOREAN IME input is used
That sounds like another type of unexpected behavior 👀 (which should probably be fixed from Twitter side)