feat: allow '*' wild card for tag option

README.md

@@ -270,6 +270,51 @@ module.exports = {
 };
 ```
 
+If the tag name is not specified or assigned to the wild card `'*'` it will process all the tags.
+
+> You can use your custom filter to specify html elements to be processed.
+
+For example:
+
+**webpack.config.js**
+
+```js
+module.exports = {
+  module: {
+    rules: [
+      {
+        test: /\.html$/i,
+        loader: 'html-loader',
+        options: {
+          attributes: {
+            list: [
+              {
+                // Tag name
+                tag: '*', // or tag: ''
+                // Attribute name
+                attribute: 'src',
+                // Type of processing, can be `src` or `scrset`
+                type: 'src',
+                // Allow to filter some attributes (optional)
+                filter: (tag, attribute, attributes, resourcePath) => {
+                  // The `tag` argument contains a name of the HTML tag.
+                  // The `attribute` argument contains a name of the HTML attribute.
+                  // The `attributes` argument contains all attributes of the tag.
+                  // The `resourcePath` argument contains a path to the loaded HTML file.
+
+                  // choose all HTML tags except img tag
+                  return tag.toLowerCase() !== 'img';
+                },
+              },
+            ],
+          },
+        },
+      },
+    ],
+  },
+};
+```
+
 #### `urlFilter`
 
 Type: `Function`

src/options.json

@@ -5,8 +5,7 @@
       "type": "object",
       "properties": {
         "tag": {
-          "type": "string",
-          "minLength": 1
+          "type": "string"
         },
         "attribute": {
           "type": "string",
@@ -19,7 +18,7 @@
           "instanceof": "Function"
         }
       },
-      "required": ["tag", "attribute", "type"],
+      "required": ["attribute", "type"],
       "additionalProperties": false
     },
     "AttributeList": {

src/plugins/source-plugin.js

@@ -495,7 +495,14 @@ export default (options) =>
     const getAttribute = (tag, attribute, attributes, resourcePath) => {
       return attributeList.find(
         (element) =>
-          element.tag.toLowerCase() === tag.toLowerCase() &&
+          // eslint-disable-next-line no-undefined
+          ((element.tag !== undefined &&
+            element.tag.toLowerCase() === tag.toLowerCase()) ||
+            // eslint-disable-next-line no-undefined
+            element.tag === undefined ||
+            // eslint-disable-next-line no-undefined
+            (element.tag !== undefined && !element.tag.length) ||
+            element.tag === '*') &&
           element.attribute.toLowerCase() === attribute.toLowerCase() &&
           (element.filter
             ? element.filter(tag, attribute, attributes, resourcePath)