* Visit https://el.wikipedia.org/wiki/%CE%A6%CF%81%CF%85%CE%B3%CE%B9%CE%BA%CE%AE_%CE%B3%CE%BB%CF%8E%CF%83%CF%83%CE%B1 in Chrome
* an error displays in the console when the graph has loaded.
If the constructor arguments are bad, then it is the job of the Graph extension to refuse to render them.
This is generating a large amount of logspam.
```
at new Uri URL1:1353:761
at VegaWrapper.parseUrl URL1:790:433
at VegaWrapper.sanitizeUrl URL1:794:29
at ImageLoader.browser URL1:610:850
at ImageLoader.prototype.loadImage URL1:611:554
at CanvasRenderer.prototype.loadImage URL1:578:780
at CanvasRenderer.draw URL1:583:253
at CanvasRenderer.prototype.draw URL1:578:511
at CanvasRenderer.draw URL1:581:406
at CanvasRenderer.prototype.draw URL1:578:511
URL1: https://el.wikipedia.org/w/load.php?lang=el&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.centralautologin%7Cext.cite.ux-enhancements%7Cext.cx.eventlogging.campaigns%7Cext.dismissableSiteNotice%2CeventLogging%2CnavigationTiming%2Cpopups%2CwikimediaEvents%7Cext.graph.data%2Cvega2%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2CtextSelection%2Cui%7Cjquery.uls.data%7Cmediawiki.String%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Ctoc%2Cuser%2Cutil%7Cmediawiki.editfont.styles%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.legacy.js%7Cuser.defaults&skin=vector&version=hi3xa
```