Hiding bracketed Braille Unicode characters when using Braille Dots Pattern - liblouis iOS Braille table on iPhone with Braille Displays via bluetooth on Safari

I have a question about rendering Braille Unicode patterns via VoiceOver on iPhone connected via Bluetooth with Braille displays. I’m developing a web app (users access via Safari) that uses raw Braille Unicode characters rather than using 8-dot, UEB contracted or uncontracted, because I want the characters to render the exact dots regardless of which braille table the user has theirs set too. My question is, can I hide the (bracketing?) characters [⣇ (1-2-3-7-8) and ⣸ (4-5-6-7-8)] that bracket Braille Unicode character passages? I find them unseemly from the perspective of the user, who may or may not be especially technologically savvy. Any suggestions for work arounds will be appreciated.

Hiding bracketed Braille Unicode characters when using Braille Dots Pattern - liblouis iOS Braille table on iPhone with Braille Displays via bluetooth on Safari
 
 
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