fix cors issue

Author: nursoltan-s

src/services/challenges.js

@@ -15,8 +15,6 @@ import { getApi } from './api';
 import { getService as getMembersService } from './members';
 import { getService as getSubmissionsService } from './submissions';
 
-const MAX_PER_PAGE = 300;
-
 export function getFilterUrl(backendFilter, frontFilter) {
   const ff = _.clone(frontFilter);
   // eslint-disable-next-line object-curly-newline
@@ -543,27 +541,16 @@ class ChallengesService {
 
     const query = getFilterUrl(filter.backendFilter, filter.frontFilter);
 
-    const totalQuery = getFilterUrl(
-      filter.backendFilter,
-      { ...filter.frontFilter, page: 1, perPage: MAX_PER_PAGE },
-    );
-
     let res = {};
-    let totalChallengeCount = {};
+    let totalCount = 0;
     if (_.some(filter.frontFilter.tracks, val => val)
       && !_.isEqual(filter.frontFilter.types, [])) {
       const url = `/recommender-api/${handle}?${query}`;
       res = await this.private.apiV5.get(url).then(checkErrorV5);
-      // Note: Recommender API is not returning X-Total response header.
-      // Please remove below statement with response get method.
-      const totalUrl = `/recommender-api/${handle}?${totalQuery}`;
-      totalChallengeCount = await this.private.apiV5.get(totalUrl).then(checkErrorV5);
+      totalCount = res.headers.get('x-total') || 0;
     }
-    const challenges = res.result ? res.result.filter(ch => ch.jaccard_index > 0) : [];
-    const total = totalChallengeCount.result
-      ? totalChallengeCount.result.filter(ch => ch.jaccard_index > 0) : [];
 
-    const totalCount = total.length;
+    const challenges = res.result ? res.result.filter(ch => ch.jaccard_index > 0) : [];
     return {
       challenges,
       totalCount,