Don't break status parsing when link class is missing.

src/services/status_parser/status_parser.js

@@ -4,7 +4,7 @@ export const removeAttachmentLinks = (html) => {
   return sanitize(html, {
     allowedTags: false,
     allowedAttributes: false,
-    exclusiveFilter: ({ tag, attribs }) => tag === 'a' && attribs.class.match(/attachment/)
+    exclusiveFilter: ({ tag, attribs }) => tag === 'a' && typeof attribs.class === 'string' && attribs.class.match(/attachment/)
   })
 }
 

test/unit/specs/services/status_parser/status_parses.spec.js

@@ -4,8 +4,14 @@ import { removeAttachmentLinks } from '../../../../../src/services/status_parser
 
 describe('statusParser.removeAttachmentLinks', () => {
   const exampleWithoutAttachmentLinks = '<div class="status-content">@<a href="https://sealion.club/user/4" class="h-card mention" title="dewoo">dwmatiz</a> </div>'
+
   it('removes attachment links', () => {
     const parsed = removeAttachmentLinks(example)
     expect(parsed).to.eql(exampleWithoutAttachmentLinks)
   })
+
+  it('works when the class is empty', () => {
+    const parsed = removeAttachmentLinks('<a></a>')
+    expect(parsed).to.eql('<a></a>')
+  })
 })