Couchbase give different set of buckets list for url ending with '/'

Following two urls, gives different set of buckets list so Ruby client throws missing bucket error

http://localhost:8091/pools/default/buckets/

[{"name":"test","bucketType":"membase","authType":"sasl","saslPassword":"sometest","proxyPort":0,"uri":"/pools/default/buckets/test","streamingUri":"/pools/default/bucketsStreaming/test","flushCacheUri":"/pools/default/buckets/test/controller/doFlush","nodes":[{"systemStats":

{"cpu_utilization_rate":13.0,"swap_total":536870912,"swap_used":175226880}

,"interestingStats":

{"curr_items":326,"curr_items_tot":326,"vb_replica_curr_items":0}

,"uptime":"25618","memoryTotal":5871032000,"memoryFree":1185196000,"mcdMemoryReserved":4479,"mcdMemoryAllocated":4479,"couchApiBase":"http://127.0.0.1:5984/test","replication":1.0,"clusterMembership":"active","status":"healthy","thisNode":true,"hostname":"127.0.0.1:8091","clusterCompatibility":1,"version":"1.7.1_360_gc95a8c6","os":"i386-apple-darwin10.8.0","ports":{"proxy":11211,"direct":11210}}],"stats":

{"uri":"/pools/default/buckets/test/stats","directoryURI":"/pools/default/buckets/test/statsDirectory","nodeStatsListURI":"/pools/default/buckets/test/nodes"}

,"nodeLocator":"vbucket","autoCompactionSettings":false,"vBucketServerMap":

{"hashAlgorithm":"CRC","numReplicas":0,"serverList":["127.0.0.1:11210"],"vBucketMap":[[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0]]}

,"replicaNumber":0,"quota":

{"ram":536870912,"rawRAM":536870912}

,"basicStats":

{"quotaPercentUsed":0.07933229207992554,"opsPerSec":0,"diskFetches":0,"itemCount":0,"diskUsed":66895,"memUsed":425912}

,"bucketCapabilitiesVer":"sync-1.0","bucketCapabilities":["touch","sync","couchapi"]}]

http://localhost:8091/pools/default/buckets

[{"name":"default","bucketType":"membase","authType":"sasl","saslPassword":"","proxyPort":0,"uri":"/pools/default/buckets/default","streamingUri":"/pools/default/bucketsStreaming/default","flushCacheUri":"/pools/default/buckets/default/controller/doFlush","nodes":[{"systemStats":

{"cpu_utilization_rate":44.72361809045226,"swap_total":536870912,"swap_used":175210496}

,"interestingStats":

{"curr_items":326,"curr_items_tot":326,"vb_replica_curr_items":0}

,"uptime":"27273","memoryTotal":5882252000,"memoryFree":1060824000,"mcdMemoryReserved":4487,"mcdMemoryAllocated":4487,"couchApiBase":"http://127.0.0.1:5984/default","replication":1.0,"clusterMembership":"active","status":"healthy","thisNode":true,"hostname":"127.0.0.1:8091","clusterCompatibility":1,"version":"1.7.1_360_gc95a8c6","os":"i386-apple-darwin10.8.0","ports":{"proxy":11211,"direct":11210}}],"stats":

{"uri":"/pools/default/buckets/default/stats","directoryURI":"/pools/default/buckets/default/statsDirectory","nodeStatsListURI":"/pools/default/buckets/default/nodes"}

,"nodeLocator":"vbucket","autoCompactionSettings":false,"vBucketServerMap":

{"hashAlgorithm":"CRC","numReplicas":0,"serverList":["127.0.0.1:11210"],"vBucketMap":[[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0],[0]]}

,"replicaNumber":0,"quota":

{"ram":536870912,"rawRAM":536870912}

,"basicStats":

{"quotaPercentUsed":0.09273029863834381,"opsPerSec":0,"diskFetches":0,"itemCount":326,"diskUsed":601474,"memUsed":497842}

,"bucketCapabilitiesVer":"sync-1.0","bucketCapabilities":["touch","sync","couchapi"]}]