AWS Signatures with duplicate querystring values are invalid

[stevenh]

Postman Version: 5.1.3
App: Chrome app
OS details: Windows 10 x64
Is the Interceptor on and enabled in the app: Yes
Did you encounter this recently, or has this bug always been there: Always
Expected behaviour: AWS Authentication should work
Sign a request with AWS auth which include duplicate querystring fields e.g.
?uuid=26cadde4-4d54-11e6-b0d9-bb25bde55565&uuid=08c030d9-898a-11e7-bed9-8982382c8e7f

The signature should work but it doesn't. I believe this is due to the fact that values are some how sorted before signing (common bug in AWS auth libs).

This was originally reported and fixed here: #2384 unfortunately it seems its regressed again.

[stevenh]

Sorry may have been premature there, we switched decoding libs to the official AWS library and it seems it may be the cause of this, so closing for now.