abstractwiki_run_fragment can return a variety of errors:

1. generated at the abstract wiki side, while executing the API

The possible returned types are shown below.
Maybe we show the message from the response for 'bad-response', and 'wikilambda-zerror' the other 2 seem like it can be static.

const FRAGMENT_RENDER_ERROR_MAP = {
	'apierror-abstractwiki_run_fragment-not-enabled': { errorCode: 'not-enabled', useMessageAsDetails: false },
	'apierror-abstractwiki_run_fragment-bad-fragment': { errorCode: 'bad-fragment', useMessageAsDetails: false },
	'apierror-abstractwiki_run_fragment-bad-response': { errorCode: 'bad-response', useMessageAsDetails: true },
	'wikilambda-zerror': { errorCode: 'bad-response', useMessageAsDetails: true }
};

Possible Messages:

	"wikilambda-abstract-fragment-error-bad-fragment": "Could not render fragment: invalid fragment JSON.",
	"wikilambda-abstract-fragment-error-not-enabled": "Fragment preview is not available: this feature is not enabled.",
	"wikilambda-abstract-fragment-error-unknown": "Unable to render fragment.",

errors.js: Perhaps we can reuse the errors store for this as well and use the getFragmentCacheKey( keyPath, language ); cachekey as an errorId?

2. generated at the wikifunctions side (php or orchestrator), while calling wikilambda_function_call

it would be nice if we could differentiate the 'apierror-abstractwiki_run_fragment-bad-response' errors a bit more in PHP:

• apierror-abstractwiki_run_fragment-not-html-fragment: when response is not a z89 fragment
• apierror-abstractwiki_run_fragment-invalid-json: when response is not valid json

And we should find a way to display orchestrator errors returned from this.

Change #1248016 had a related patch set uploaded (by Genoveva Galarza; author: Genoveva Galarza):

[mediawiki/extensions/WikiLambda@master] [WIP] Remove risk to make local fetches when producing exceptions in clients

https://gerrit.wikimedia.org/r/1248016

Change #1248910 had a related patch set uploaded (by Genoveva Galarza; author: Genoveva Galarza):

[mediawiki/extensions/WikiLambda@master] Use granular WikifunctionCallException for abstract wiki requests

https://gerrit.wikimedia.org/r/1248910

Change #1248910 merged by jenkins-bot:

[mediawiki/extensions/WikiLambda@master] Use granular WikifunctionCallException for abstract wiki requests

https://gerrit.wikimedia.org/r/1248910