GrowthExperiments extension derails display of data on WikiApiary for wikis using it

[kghbln]

The GrowthExperiments extension, at least I think this is the one causing the issue derails the display of data on WikiApiary because it returns data for pageviewservice-supported-metrics in complex JSON (not sure how to call this), i.e. the value fetched from the API closes with two brackets }} which conflicts with wikitext. The template thinks it comes to an end with the pageviewservice-supported-metrics parameter, which is obviously not the case.

..
|pageviewservice-supported-metrics={u'siteviews': {u'uniques': u'', u'pageviews': u''}, u'mostviewed': {u'pageviews': u''}, u'pageviews': {u'pageviews': u''}}
..

@hexmode Is there a way to tell BumbleBee to either escape the closing brackets or if easier to not even collect this data item? A fix will be cool to get WMF wikis on track again on WikiApiary.

[lens0021]

Based on recent edits by bumble-bee, my patch doesn't seem to fix this issue; Maybe it is because x['pageviewservice-supported-metrics'] is an object, not basestring which is checked at line

wikibees/bumble-bee/bumble-bee.py

Line 543 in d9996cd

if isinstance(value, basestring):

.

Could you reopen this? @hexmode