union result is wrong

[jonathanaliaga]

Hello, I am using polybooljs for my project.
During trying to get union data of the polys from following data, at last, I am getting empty regions:
{"regions":[],"inverted":false}

const poly1 = {"regions":[[[-175780,257560],[-175760,257540],[-175720,257560]],[[-175340,257720],[-175540,257620],[-175700,257680],[-175660,257780],[-175680,257860],[-175760,257840],[-175780,257700],[-175933.6923076923,257728.46153846153],[-175920,257660],[-175840,257660],[-175820,257560],[-175900,257560],[-175940,257460],[-176060,257400],[-176074.8872180451,257401.35338345866],[-176400,257260],[-176400,258100],[-176200,258200],[-176100,258240],[-176135.45454545456,258098.18181818182],[-176087.54716981133,257988.679245283],[-175940,258040],[-175820,257960],[-175660,257940],[-175500,257760],[-175380,257760]],[[-175600,258300],[-175600,258060],[-175660,258020],[-175640,257960],[-175540,257840],[-175220,257820],[-175320,257920],[-175320,257925],[-175280,257900],[-175140,257900],[-175140,258300]]],"inverted":false};
const poly2 = {"regions":[[[-175900,257560],[-176180,258200],[-175980,258300],[-175140,258300],[-175140,257800],[-175780,257540]]],"inverted":false};