| Duplicate MIME Fields Are Not Coalesced |
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| .. |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
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| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
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| http://www.apache.org/licenses/LICENSE-2.0 |
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| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| MIME headers can contain more than one MIME field with the same name. |
| Earlier versions of Traffic Server joined multiple fields with the same |
| name into one field with composite values. This behavior came at a |
| performance cost and caused interoperability problems with older clients |
| and servers. Therefore, this version of Traffic Server does not coalesce |
| duplicate fields. |
| |
| Properly-behaving plugins should check for the presence of duplicate |
| fields and then iterate over the duplicate fields via |
| :c:func:`TSMimeHdrFieldNextDup`. |
