Does a POST that results in a redirect get turned into a GET (instead of remaining a POST)?

[David Miller]

Hi all,

I have some code that looks something like this

.exec(http("request_52")

.post("/service/login")

.headers(headers_52)

.body(RawFileBody("RecordedSimulation_0052_request.txt")).check(bodyString.saveAs("result")))

the result of this call is "HTTP/1.1 301 MOVED PERMANENTLY" and gives back https://myserver:443/service/login (Note the https)

In Chrome this results in a subsequent POST to https://myserver:443/service/login with the same content.

In Gatling I *think* this results in a a GET to https://myserver:443/service/login instead of a POST

In my actual application sending a GET to this URL returns a 405 not allowed (as this endpoint only accepts POST)

This means my Gatling script fails as it is getting a 405, also the server is in the wrong state as it hasn't had a successful POST.

I've set up fiddler and my script is set to proxy both http/https traffic to fiddler.

In fiddler I see 

- POST /service/login HTTP/1.1 with a response HTTP/1.1 301 MOVED PERMANENTLY, then 

- CONNECT myserver:443 HTTP/1.1 with a response HTTP/1.1 200 Connection Established, then

- GET to https://myserver/service/login HTTP/1.1 with a response HTTP/1.1 405 Method Not Allowed

Any ideas? Have I found a bug or am I misreading?

Thanks!

Dave.

[David Miller]

Aha a thing has just occurred which is maybe HTTP POST redirect isn't supported in HTTP specification, I'll need to check that...

[Stéphane LANDELLE]

https://developer.mozilla.org/en-US/docs/Web/HTTP/Redirections

Original HTTP redirect status were poorly specified, hence the multiple possible behaviors.

Then, please understand that combining redirects and request bodies is not a great idea: what if the body was already consumed and cannot be recomputed (eg a stream)?

Stéphane Landelle

GatlingCorp CEO

slan...@gatling.io

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[David Miller]

Hi Stéphane,

Yep, thanks for your reply.

I can change my recording/application to trivially avoid this redirection occurring, and that seems to work. 

Yes, I see what you mean re: HTTP specification, in our context we should probably be using 308 rather than 301

Thanks,

Dave.

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