removed comments, added docu

src/components/experiment-list/experiment-list-element.js

@@ -4,9 +4,6 @@ import ExperimentsService from '../../services/proxy/experiments-service.js';
 
 import './experiment-list-element.css';
 
-//import config from '../../config.json';
-//import endpoints from '../../services/proxy/data/endpoints.json';
-
 export default class ExperimentListElement extends React.Component {
   constructor(props) {
     super(props);

src/services/proxy/experiments-service.js

@@ -45,6 +45,12 @@ class ExperimentsService extends HttpService {
     return this.experiments;
   };
 
+  /**
+   * Retrieves the thumbnail image for a given experiment.
+   * @param {object} experiment - experiment specification and configuration object
+   *
+   * @returns {Blob} image object
+   */
   async getThumbnail(experiment) {
     let url = config.api.proxy.url + endpoints.proxy.storage.url + '/' + experiment.name + '/' + experiment.configuration.thumbnail + '?byname=true';
     let response = await this.httpRequestGET(url);