"‌ is a ZWNJ, which I used because Reader Mode is too smart for its own good and will ignore an element that has empty text content or just an NBSP." ZWNJ and

"‌ is a ZWNJ, which I used because Reader Mode is too smart for its own good and will ignore an element that has empty text content or just an NBSP." ZWNJ and its other zero-width friends is my ninja secret. Oh, are you demanding this text box be filled with something? No thank you. Have a ZWNJ. Few, if any, sites that are "checking" for content being in some widget "correctly" filter out the entire Unicode space class. (I mean, I assume somewhere out there there is one, but so far this has never failed me.) Most of them just filter out ASCII space 32. A few are smart enough to filter out tabs as well; if Reader is also filtering out NBSP that already puts it at the head of the class. I'm not sure I've yet encountered one that is filtering out the entire Unicode class. (On the other hand, I would submit that by the time someone has taken the time to find one and copy & paste it into your text widget, you should consider your options carefully. The user has just demonstrated significant technical sophistication. It may not be your wisest move to also filter that out. You want some Zalgo emojis? Because I can give you Zalgo emojis. You may not want Zalgo emojis; there are still some systems out there that emojis can break. You want to find out?)