Yom Yerushalayim is in 28 IYYAR, not in 29 IYYAR

[yr5770]

hebcal-js/src/holidays.js

Line 480 in fcf7cbb

new HDate(29, months.IYYAR, year),

instead of: new HDate(29, months.IYYAR, year),
should be: new HDate(28, months.IYYAR, year),