fix radios value(EDGE)

Author: codehz

index.html

@@ -344,6 +344,8 @@
 }
 })();
 
+const getRadio = radios => Array.from(radios).find(r => r.checked).value;
+
 gen_btn.addEventListener("click", () => {
 if (lock.init()) return;
 const zip = new JSZip();
@@ -355,7 +357,7 @@
 const formatstring = form.elements.formatstring.value;
 const gridsize = form.elements.gridsize.value;
 const glyph_sizes_bin = form.elements.glyph_sizes_bin.value;
-const metamode = form.elements.metamode.value;
+const metamode = form.elements.metamode.value ? getRadio(form.elements.metamode);
 const pack_format = parseInt(form.elements.pack_format.value);
 const description_format = form.elements.description_format.value;
 preview_canvas.width = gridsize * 16;