Ensure dates calculated with JS are never before first allowed date (#13348)

1 files changed, 19 insertions, 0 deletions

diff --git a/plugins/CoreHome/angularjs/common/services/periods.js b/plugins/CoreHome/angularjs/common/services/periods.js
index 1c02bca2df..ceb04eff9f 100644
--- a/plugins/CoreHome/angularjs/common/services/periods.js
+++ b/plugins/CoreHome/angularjs/common/services/periods.js
@@ -224,6 +224,25 @@
             endDate = endPeriod.getDateRange()[1];
         }
 
+        var firstWebsiteDate = new Date(1991, 7, 6);
+        if (startDate - firstWebsiteDate < 0) {
+            switch (childPeriodType) {
+                case 'year':
+                    startDate = new Date(1992, 0, 1);
+                    break;
+                case 'month':
+                    startDate = new Date(1991, 8, 1);
+                    break;
+                case 'week':
+                    startDate = new Date(1991, 8, 12);
+                    break;
+                case 'day':
+                default:
+                    startDate = firstWebsiteDate;
+                    break;
+            }
+        }
+
         return new RangePeriod(startDate, endDate, childPeriodType);
     };