Why the non-plated holes /slots in the files are produced as plated holes /slots and cause short circuit problem?

country_id, logFlag, login_email / email, wayuserid, wayuserkey, inviteid, PromoterCode, sid, ASP.NET_SessionId, errCode, Language_Pabway_Visitor, pcbwaycookies, pcbwaycookies_analytics, pcbwaycookies_functional

.pcbway.es

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Secure-3PSIDCC, SAPISID, SSID, Secure-3PSID, SIDCC, SID, HSID, APISID, NEST, __Secure-3PAPISID, DSID, RUL, IDE

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VISITOR_INFO1_LIVE, YSC

.youtube.com

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fr, datr, sb,

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atpsida, sca, UM_distinctid, CNZZDATA1279077088, cna

.cnzz.mmstat.com & .unionfab.com & make.unionfab.com & .mmstat.com

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FASID, SSID

cdn.livechat-files.com

LiveChat online chat tool.

guest_id, personalization_id

.twitter.com

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uvc, loc, sshs, xtc

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id, test_cookie

.doubleclick.net

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