fix: slugs are still broken when headings contain html (#1443)

src/core/render/slugify.js

@@ -15,7 +15,7 @@ export function slugify(str) {
   let slug = str
     .trim()
     .replace(/[A-Z]+/g, lower)
-    .replace(/<[^>\d]+>/g, '')
+    .replace(/<[^>]+>/g, '')
     .replace(re, '')
     .replace(/\s/g, '-')
     .replace(/-+/g, '-')

test/unit/render-util.test.js

@@ -2,6 +2,8 @@ const { removeAtag } = require('../../src/core/render/utils');
 
 const { tree } = require(`../../src/core/render/tpl`);
 
+const { slugify } = require(`../../src/core/render/slugify`);
+
 // Suite
 // -----------------------------------------------------------------------------
 describe('core/render/utils', () => {
@@ -42,3 +44,16 @@ describe('core/render/tpl', () => {
     );
   });
 });
+
+describe('core/render/slugify', () => {
+  test('slugify()', () => {
+    const result = slugify(
+      `Bla bla bla <svg aria-label="broken" class="broken" viewPort="0 0 1 1"><circle cx="0.5" cy="0.5"/></svg>`
+    );
+    const result2 = slugify(
+      `Another <span style="font-size: 1.2em" class="foo bar baz">broken <span class="aaa">example</span></span>`
+    );
+    expect(result).toEqual(`bla-bla-bla-`);
+    expect(result2).toEqual(`another-broken-example`);
+  });
+});