fix bug when page not a search result page

matomo.js

@@ -3,21 +3,21 @@
 try {
 var _paq = _paq || [];
 var tracksearch = false;
-var search_keywords = decodeURI(document.URL.match('expressionRecherche/([^/]+)')[1]);
-var search_type = document.URL.match('recherche/([^/]+)')[1];
+var search_keywords = (keywords = document.URL.match('expressionRecherche/([^/]+)')) ? decodeUri(keywords[1]) : '';
+var search_type = (type = document.URL.match('recherche/([^/]+)')) ? type[1] : '';
 var search_facets = '';
 var search_page = '';
 var result_count = 0;
 
 // compatibilité Magasin de thème
-if ( $('body').attr('data-template') && $('div.search_result') ) {
+if ( search_keywords && ('body').attr('data-template') && $('div.search_result') ) {
     result_count = $('li.result_count_results').text().match('[0-9]+')[0];
     search_page = $('li.result_pager span').html().match(' ([0-9]+) /')[1];
     tracksearch = true;
 }
 
 // compatibilité thème historique
-if ( $('body').hasClass('template_HISTORIC') && $('div.resultats_page')) {
+if ( search_keywords && $('body').hasClass('template_HISTORIC') && $('div.resultats_page')) {
     result_count = $('span.nombre-recherche').text().match('[0-9]+')[0];
     search_page = $('div.pager span.current a').html();
     tracksearch = true;