Wrong month value when converting from Hijri to Gregorian

[S66D]

Hijri.js/Hijri.js

Line 127 in 95664d4

return new Date(year + "/" + (month+1) + "/" + day);

Dear,
I get Invalid input when I investigated the issue I found the month +1 in line #L127 is not setting proper values, when I remove the '+1' it solve the problem, by the way I'm using Chrome

[nahlmb]

Hijri.js/Hijri.js

Line 127 in 95664d4

return new Date(year + "/" + (month+1) + "/" + day);

Dear,
I get Invalid input when I investigated the issue I found the month +1 in line #L127 is not setting proper values, when I remove the '+1' it solve the problem, by the way I'm using Chrome

Jazakallah khoiron is solve me to