iOS 17(RC) ZWNJ parsing error

Is there anyone who has resolved this issue before? We are using a JavaScript-based chart library and receiving data from the chart as strings. Until iOS 16, the parsing was going smoothly, but it seems that the parsing of the \u{200c} unicode is behaving differently in iOS 17. The yellow boxes in the picture indicate \u{200c} as displayed in VSCode. While all were parsed correctly in iOS 16, allowing for the string to be segmented, it seems that the parsing is not fully functioning in iOS 17, preventing the string from being split.

iOS 17(RC) ZWNJ parsing error
 
 
Q