fix: parse5 attr value undefined error

lib/util.js

@@ -111,23 +111,26 @@ function replaceNodesWithNodes(oldNodes, newNodes = []) {
 	childNodes.splice(index, 0, ...newNodes);
 }
 
+/**
+ * concat parse5 attrs object like Object.assign
+ * @param attrsTo
+ * @param attrsFrom
+ * @returns {*}
+ */
 function assignParse5Attrs(attrsTo, attrsFrom) {
 	attrsFrom.forEach((attrFrom) => {
 		const index = attrsTo.findIndex((attrTo) => {
 			return attrTo.name === attrFrom.name;
 		});
+		// if find in attrFrom then replace value
 		if (index >= 0) {
-			if (attrFrom.value === undefined) {
-				// remove value's undefined attr
-				attrsTo.splice(index, 1);
-			} else {
-				attrsTo[index].value = attrFrom.value;
-			}
+			attrsTo[index].value = attrFrom.value;
 		} else {
 			attrsTo.push(attrFrom);
 		}
 	});
-	return attrsTo;
+	// remove undefined value attr
+	return attrsTo.filter(attrTo => attrTo.value !== undefined);
 }
 
 /**

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "web-webpack-plugin",
-	"version": "1.9.0",
+	"version": "1.9.1",
 	"description": "web plugin for webpack, alternatives for html-webpack-plugin, use HTML as entry",
 	"keywords": [
 		"webpack",
@@ -48,13 +48,13 @@
 	},
 	"devDependencies": {
 		"css-loader": "^0.28.4",
-		"ejs": "^2.5.6",
-		"eslint": "^4.2.0",
+		"ejs": "^2.5.7",
+		"eslint": "^4.3.0",
 		"extract-text-webpack-plugin": "^3.0.0",
 		"file-loader": "^0.11.2",
-		"html-minifier": "^3.5.2",
+		"html-minifier": "^3.5.3",
 		"husky": "^0.14.3",
 		"style-loader": "^0.18.2",
-		"webpack-dev-server": "^2.5.1"
+		"webpack-dev-server": "^2.6.1"
 	}
 }