Routing to a web app slot with query parameters

Akshay Hosur 1

I have created a web app with multiple slots in azure, I can use it for my A|B testing.

Let’s say https://mysite.azurewebsites.net is my production site https://mysite-staging.azurewebsites.net is my staging site.

When I enable the traffic route (say 30%) to a staging slot, whenever a user hits the production URL with query parameters - https://mysite.azurewebsites.net/?name=xyz&id=1, it is routing that request to staging slot without query parameters https://mysite-staging.azurewebsites.net.

How can we route the request without dropping any query params?

Ryan Hill 25,476 Reputation points Microsoft Employee

2021-06-02T23:08:30.42+00:00

Do you have manual traffic routing anywhere in your site @Akshay Hosur ?
Akshay Hosur 1 Reputation point

2021-06-03T03:17:54.503+00:00

@Ryan Hill Yes, we have manual traffic routing between staging and production sites. User can go back to the production site using a query parameter x-ms-routing-name=self

We have enabled routing traffic automatically to another slot. The problem is when user hits the production site with some query params, the automated route drops the query parameter and routes it to a specified slot.
Ryan Hill 25,476 Reputation points Microsoft Employee

2021-06-03T17:11:15.063+00:00
Got it @Akshay Hosur . A couple of more questions.

Is it reproducible consistently on the slot with automatically routing?

Are the slots manual routing affected?

Are the query parameters applied before or after the client hits your app service?
Akshay Hosur 1 Reputation point

2021-06-09T05:37:55.703+00:00
yes it is reproducible

Manual routing slots are not affected

we apply the query string before hitting the site, since auto-routing is enabled, it will route the traffic to another slot without any query string.

Because of this problem currently, I have disabled auto-routing

Ex: here is my prod site https://azuredevopsdemogenerator.azurewebsites.net/?name=myhealthclinic
The user hits this URL.

after routing to another site, the URL would be https://azuredevopsdemogenerator-core.azurewebsites.net