summary is sent as a language map instead of a plain string

[pfefferle]

tags.pub sends summary as a JSON object (language map) instead of a plain string:

{
  "summary": {
    "en": "blog shared \"Bloggen ist tot\""
  }
}

According to the Activity Streams 2.0 spec and the Language Mapping primer, language-tagged values should use the summaryMap property, while summary should remain a plain string:

{
  "summary": "blog shared \"Bloggen ist tot\"",
  "summaryMap": {
    "en": "blog shared \"Bloggen ist tot\""
  }
}

This causes issues in implementations that expect summary to be a string (e.g. WordPress ActivityPub plugin crashes with a TypeError when trying to process the value).

The same likely applies to content/contentMap and name/nameMap if those are also sent as language maps.

[pfefferle]

I made some changes, so that the WordPress plugin can deal with this special case, but I think this might be a general problem with other services too, so I would vote for fixing it in tags.pub.