nl_tokens: https : // html . spec . whatwg . org / #scroll - to - fragid
pl_tokens: function navigateToFragment ( window , newURL , flags ) { const document = idlUtils . implForWrapper ( <mask> . _document ) ; window . _sessionHistory . clearHistoryTraversalTasks ( ) ; if ( ! flags . replacement ) { // handling replacement=true here deviates from spec, but matches real browser behaviour // see https://github.com/whatwg/html/issues/2796 for spec bug window . _sessionHistory . removeAllEntriesAfterCurrentEntry ( ) ; } const newEntry = { document , url : newURL } ; window . _sessionHistory . addEntryAfterCurrentEntry ( newEntry ) ; window . _sessionHistory . traverseHistory ( newEntry , { nonBlockingEvents : true , replacement : flags . replacement } ) ; }