Revert "Prefetch sources (#184)"

This reverts commit 5828476.

Author: rubensworks

src/ldf-client-ui.js

@@ -476,7 +476,6 @@ if (typeof global.process === 'undefined')
         })).trigger('chosen:updated');
         // Update the query set
         this._loadQueries(value);
-        this._prefetchSources();
         break;
       // Set the query
       case 'query':
@@ -1072,21 +1071,6 @@ if (typeof global.process === 'undefined')
       const $webid = $('.webid', this.element);
       $webid.html(`Logged in as <a href="${this.$solidSession.info.webId}" target="_blank">${name || shortenUrl(this.$solidSession.info.webId, 35)}</\a>`);
     },
-
-    _prefetchSources: function () {
-      if (!this._queryWorker || this.options.bypassCache)
-        return;
-
-      const datasources = Object.keys(this.options.selectedDatasources || {});
-      if (!datasources.length)
-        return;
-
-      this._queryWorker.postMessage({
-        type: 'prefetchSources',
-        sources: datasources.map(datasource => resolve(datasource, window.location.href)),
-        context: this._getQueryContext(),
-      });
-    },
   };
 
   // Creates a function that appends text to the given element in a throttled way

src/ldf-client-worker.js

@@ -138,24 +138,6 @@ SELECT ?name WHERE {
           }).catch(postError);
       }).catch(postError);
   },
-
-  prefetchSources: async function ({ sources, context }) {
-    if (!sources || !sources.length)
-      return;
-
-    initEngine({ context });
-    context.log = logger;
-
-    await Promise.allSettled(
-      sources.map(source =>
-        engine.queryBoolean('ASK { ?s ?p ?o }', {
-          ...context,
-          sources: [source],
-        })
-      )
-    );
-  },
-
 };
 
 function postError(error) {