fix: case if value === null

application/source/dom/util/init-options-from-attributes.mjs

@@ -64,7 +64,10 @@ function initOptionsFromAttributes(element, options, mapping = {}, prefix = "dat
                 value = mapping[optionName](value);
             }
 
-            const optionValue = finder.getVia(optionName);
+            let optionValue = finder.getVia(optionName);
+            if (optionValue === null || optionValue === undefined) {
+                optionValue = value;
+            }
                 
             const typeOfOptionValue = typeof optionValue;
             if (optionValue === null || optionValue === undefined) {