Convert markdownlint library to an ECMAScript module, replace markdownlint-micromark with micromark, stop publishing (large) markdownlint-browser.js, see https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c for guidance.

lib/md033.mjs

@@ -0,0 +1,38 @@
+// @ts-check
+
+import { addError, nextLinesRe } from "../helpers/helpers.cjs";
+import { getHtmlTagInfo } from "../helpers/micromark-helpers.cjs";
+import { filterByTypesCached } from "./cache.mjs";
+
+/** @type {import("./markdownlint.mjs").Rule} */
+export default {
+  "names": [ "MD033", "no-inline-html" ],
+  "description": "Inline HTML",
+  "tags": [ "html" ],
+  "parser": "micromark",
+  "function": function MD033(params, onError) {
+    let allowedElements = params.config.allowed_elements;
+    allowedElements = Array.isArray(allowedElements) ? allowedElements : [];
+    allowedElements = allowedElements.map((element) => element.toLowerCase());
+    for (const token of filterByTypesCached([ "htmlText" ], true)) {
+      const htmlTagInfo = getHtmlTagInfo(token);
+      if (
+        htmlTagInfo &&
+        !htmlTagInfo.close &&
+        !allowedElements.includes(htmlTagInfo.name.toLowerCase())
+      ) {
+        const range = [
+          token.startColumn,
+          token.text.replace(nextLinesRe, "").length
+        ];
+        addError(
+          onError,
+          token.startLine,
+          "Element: " + htmlTagInfo.name,
+          undefined,
+          range
+        );
+      }
+    }
+  }
+};