Updated the default value of `CorsRule.ExposedHeaders`, `CorsRule.AllowedHeaders` to empty and `CorsRule.MaxAgeInSeconds` to `0` for `setServiceProperties` APIs of all services.

ChangeLog.md

@@ -7,6 +7,7 @@ ALL
 
 * Fixed the issue that retry filter will fail against storage emulator.
 * Fixed a hang issue of `StorageServiceClient` with retry policy filter set when retrying sending the request, the stream is not readable anymore.
+* Updated the default value of `CorsRule.ExposedHeaders`, `CorsRule.AllowedHeaders` to empty and `CorsRule.MaxAgeInSeconds` to `0` for `setServiceProperties` APIs of all services.
 
 BLOB
 * Added the API `BlobService.getPageRangesDiff` for getting the page ranges difference. Refer to https://msdn.microsoft.com/en-us/library/azure/mt736912.aspx for more detailed information.

lib/common/models/servicepropertiesresult.js

@@ -156,18 +156,30 @@ function serializeCorsRules(doc, rules){
         doc = doc.ele(ServicePropertiesConstants.ALLOWED_HEADERS_ELEMENT)
                 .txt(rule.AllowedHeaders.join(','))
                 .up();
+      } else {
+        doc = doc.ele(ServicePropertiesConstants.ALLOWED_HEADERS_ELEMENT)
+                .txt('')
+                .up();
       }
 
       if(typeof rule.ExposedHeaders !== 'undefined' && _.isArray(rule.ExposedHeaders)){
         doc = doc.ele(ServicePropertiesConstants.EXPOSED_HEADERS_ELEMENT)
                 .txt(rule.ExposedHeaders.join(','))
                 .up();
+      } else {
+        doc = doc.ele(ServicePropertiesConstants.EXPOSED_HEADERS_ELEMENT)
+                .txt('')
+                .up();
       }
 
       if(typeof rule.MaxAgeInSeconds !== 'undefined'){
         doc = doc.ele(ServicePropertiesConstants.MAX_AGE_IN_SECONDS_ELEMENT)
                 .txt(rule.MaxAgeInSeconds)
                 .up();
+      } else {
+        doc = doc.ele(ServicePropertiesConstants.MAX_AGE_IN_SECONDS_ELEMENT)
+                .txt('0')
+                .up();
       }
 
       doc = doc.up();