$batch end point doesn't work in the production O365 tenant

[erkanch]

Target SharePoint environment

SharePoint Online

What SharePoint development model, framework, SDK or API is this about?

💥 SharePoint Framework

Developer environment

None

What browser(s) / client(s) have you tested

• 💥 Internet Explorer
• 💥 Microsoft Edge
• 💥 Google Chrome
• 💥 FireFox
• 💥 Safari
• mobile (iOS/iPadOS)
• mobile (Android)
• not applicable
• other (enter in the "Additional environment details" area below)

Additional environment details

• SPFx 1.15
• Node.js 16

Describe the bug / error

We use SharePoint’s $batch endpoint to batch our calls. Below you can find the request, payload and the response. Running the two GET operations individually works, but it fails when batching. The exact same call to the $batch endpoint works fine in 4 other tenants. Is there a tenant level setting in SharePoint Online that would block using batching?

Payload:
--batch_d461665b-dbac-4472-bbc4-819c754e550a
Content-Type: application/http
Content-Transfer-Encoding: binary

GET https://tenant.sharepoint.com/sites/spappcatalog/_api/web/allProperties?$select=storageentitiesindex HTTP/1.1

--batch_d461665b-dbac-4472-bbc4-819c754e550a
Content-Type: application/http
Content-Transfer-Encoding: binary

GET https://tenant.sharepoint.com/sites/spappcatalog/_api/SP.UserProfiles.PeopleManager/GetMyProperties HTTP/1.1

--batch_d461665b-dbac-4472-bbc4-819c754e550a--

Response:
--batchresponse_14f24ebc-a471-41ce-b460-3109e6f38879
Content-Type: application/http
Content-Transfer-Encoding: binary

HTTP/1.1 400 Bad Request
CONTENT-TYPE: application/json;odata.metadata=minimal;odata.streaming=true;IEEE754Compatible=false;charset=utf-8

{"error":{"code":"-1, Microsoft.SharePoint.Client.InvalidClientQueryException","message":"Invalid request."}}
--batchresponse_14f24ebc-a471-41ce-b460-3109e6f38879
Content-Type: application/http
Content-Transfer-Encoding: binary

HTTP/1.1 400 Bad Request
CONTENT-TYPE: application/json;odata.metadata=minimal;odata.streaming=true;IEEE754Compatible=false;charset=utf-8

{"error":{"code":"-1, Microsoft.SharePoint.Client.InvalidClientQueryException","message":"Invalid request."}}
--batchresponse_14f24ebc-a471-41ce-b460-3109e6f38879--

Steps to reproduce

1. Use the payload above to POST a request to the $batch endpoint.

Expected behavior

Response should have the expected output.

Thank you for reporting this issue. We will be triaging your incoming issue as soon as possible.

[erkanch]

It turns out the URLs in batch operations are case sensitive! Changing /spappcatalog to /SPAppCatalog fixed the issue. I think this should go into the documentation.

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