@Bastenbas told me that there is an error when loading the card on https://fr.wikipedia.org/wiki/Fronti%C3%A8re_entre_l%27Inde_et_le_Pakistan#/map/0. He says that strangely enough this problem is reproducible only on a single IP (or device?)
I can't reproduce the error with my computer.
That looks T166735: Some portion of map service down: ""ids" or "query" parameter must be given" and tasks related to this last one.
Here is the stacktrace:
jQuery.Deferred exception: layer is undefined addDataGroups/</<@https://fr.wikipedia.org/w/load.php?debug=false&lang=fr&modules=ext.kartographer.box%2Cdata%2Csettings%2Csite%7Cext.kartographer.lib.topojson%7Cmapbox&skin=vector&version=13wlk7y:10:876 each@https://fr.wikipedia.org/w/load.php?debug=false&lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.contributionsmenu%7Cext.cx.eventlogging%2Cmodel%7Cext.cx.interlanguagelink.init%7Cext.cx.widgets.callout%7Cext.echo.api%2Cinit%7Cext.eventLogging%2Ckartographer%2CnavigationTiming%2CwikimediaEvents%7Cext.kartographer.linkbox%2Cstaticframe%2Cutil%7Cext.quicksurveys.init%2Clib%7Cext.uls.common%2Ccompactlinks%2Cinit%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.visualEditor.desktopArticleTarget.init%7Cext.visualEditor.progressBarWidget%2CsupportCheck%2CtargetLoader%2CtempWikitextEditorWidget%2Ctrack%2Cve%7Cext.wikimediaEvents.loggedin%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.accessKeyLabel%2CcheckboxShiftClick%2Cclient%2Ccookie%2CgetAttrs%2ChighlightText%2Csuggestions%2CtabIndex%2CtextSelection%2Cthrottle-debounce%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CRegExp%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cnotify%2Crouter%2CsearchSuggest%2Cstorage%2Ctemplate%2Ctoc%2Cuser%2Cutil%2Cviewport%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.legacy.wikibits%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.regexp%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Coojs-ui.styles.icons-media%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=07am0jc:205:883 addDataGroups/<@https://fr.wikipedia.org/w/load.php?debug=false&lang=fr&modules=ext.kartographer.box%2Cdata%2Csettings%2Csite%7Cext.kartographer.lib.topojson%7Cmapbox&skin=vector&version=13wlk7y:10:618 mightThrow@https://fr.wikipedia.org/w/load.php?debug=false&lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.contributionsmenu%7Cext.cx.eventlogging%2Cmodel%7Cext.cx.interlanguagelink.init%7Cext.cx.widgets.callout%7Cext.echo.api%2Cinit%7Cext.eventLogging%2Ckartographer%2CnavigationTiming%2CwikimediaEvents%7Cext.kartographer.linkbox%2Cstaticframe%2Cutil%7Cext.quicksurveys.init%2Clib%7Cext.uls.common%2Ccompactlinks%2Cinit%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.visualEditor.desktopArticleTarget.init%7Cext.visualEditor.progressBarWidget%2CsupportCheck%2CtargetLoader%2CtempWikitextEditorWidget%2Ctrack%2Cve%7Cext.wikimediaEvents.loggedin%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.accessKeyLabel%2CcheckboxShiftClick%2Cclient%2Ccookie%2CgetAttrs%2ChighlightText%2Csuggestions%2CtabIndex%2CtextSelection%2Cthrottle-debounce%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CRegExp%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cnotify%2Crouter%2CsearchSuggest%2Cstorage%2Ctemplate%2Ctoc%2Cuser%2Cutil%2Cviewport%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.legacy.wikibits%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.regexp%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Coojs-ui.styles.icons-media%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=07am0jc:249:916 resolve/</process<@https://fr.wikipedia.org/w/load.php?debug=false&lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2ClegacySupport%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cite.ux-enhancements%7Cext.cx.entrypoints.contributionsmenu%7Cext.cx.eventlogging%2Cmodel%7Cext.cx.interlanguagelink.init%7Cext.cx.widgets.callout%7Cext.echo.api%2Cinit%7Cext.eventLogging%2Ckartographer%2CnavigationTiming%2CwikimediaEvents%7Cext.kartographer.linkbox%2Cstaticframe%2Cutil%7Cext.quicksurveys.init%2Clib%7Cext.uls.common%2Ccompactlinks%2Cinit%2Cinterface%2Cpreferences%2Cwebfonts%7Cext.visualEditor.desktopArticleTarget.init%7Cext.visualEditor.progressBarWidget%2CsupportCheck%2CtargetLoader%2CtempWikitextEditorWidget%2Ctrack%2Cve%7Cext.wikimediaEvents.loggedin%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.accessKeyLabel%2CcheckboxShiftClick%2Cclient%2Ccookie%2CgetAttrs%2ChighlightText%2Csuggestions%2CtabIndex%2CtextSelection%2Cthrottle-debounce%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CRegExp%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cnotify%2Crouter%2CsearchSuggest%2Cstorage%2Ctemplate%2Ctoc%2Cuser%2Cutil%2Cviewport%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.legacy.wikibits%7Cmediawiki.libs.pluralruleparser%7Cmediawiki.page.ready%2Cstartup%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.regexp%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Coojs-ui.styles.icons-media%7Cskins.vector.js%7Cuser.defaults&skin=vector&version=07am0jc:250:589 undefined