Syriac Ligature Issue

My Syriac font works fine in Word, but one of the ligatures doesn’t work in HTML.
Any help with this is appreciated.
sample_1.png
Resh_image_html.png
Resh_image_word.png

We will contact you.

dieresiscomb2.png
Some combining marks are swapped due to normalization, so

/rish-syrc/dieresiscomb/dottedzlamahorizontalcomb-syrc

becomes

/rish-syrc/dottedzlamahorizontalcomb-syrc/dieresiscomb

To make your rlig work, just add a Mark Filtering Set with a class that contains the dieresiscomb.
dieresiscomb.png

Thank you; this fixed the issue.