Unable to publish manifest file - support URL is not accessible

[smieszkowsk]

We have a problem with uploading a new manifest.xml to MS. We added a new value to AppDomains list but now we are getting validation error that our support URL is invalid (see screenshot). We use the same link for over 2 years and we didn't change anything in it during that period. This blocks us from uploading a new add-in version which contains an important bug fix.
Please guide us how we can resolve this.

Your Environment

• Platform [PC desktop, Mac, iOS, Office on the web]: PC desktop, Mac, iOS, Office on web
• Host [Excel, Word, PowerPoint, etc.]: Excel
• Office version number: irrelevant
• Operating System: Windows 10/macOS
• Browser (if using Office on the web): -

Expected behavior

We should be able to upload the manifest with no issues. We didn't change a link in any way so we don't see a reason why it is not accepted now.

Current behavior

We are getting error message: "The manifest support URL is not accessible" even though it is.

Steps to reproduce

Use https://spreadsheet-sync.app.intuit.com/one-intuit-help-system/oihs-panel as support URL and try to go though validation process (npx office-addin-manifest validate -p <manifest_path>)

Link to live example(s)

Provide additional details

Context

Useful logs

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[shanshanzheng-dev]

Hi @Rick-Kirkham Could you please help take a look this issue? Thanks.

[Rick-Kirkham]

Sorry, but this is not a documentation issue and I don't have the expertise to respond.

[smieszkowsk]

@shanshanzheng-dev any chance someone else can help with this please? Or is there any other way we can contact MS support?

[shanshanzheng-dev]

Hi @smieszkowsk, sorry for slow response. Could you please try to check following Microsoft article as reference with manifest.xml: https://learn.microsoft.com/en-us/office/dev/add-ins/develop/add-in-manifests?tabs=xmlmanifest?
After development, you can try to check this article to validate your manifest if working fine or not https://learn.microsoft.com/en-us/office/dev/add-ins/testing/troubleshoot-manifest.
Thanks.

[smieszkowsk]

We are familiar with those articles, it is not the first time we upload the manifest. The issue is that that support url used to work in the past and now we're getting this error. Is there any way someone from MS could verify what is blocking this validation? We don't think anything has changed from our side so it's difficult for us to understand the issue. Thanks

[akshayta23]

We looked into the issue and it seems like HEAD is not enabled in your support URL. Please enable it and resubmit the manifest. Your manifest should pass the Package Acceptance check.

[smieszkowsk]

Is it really required to have HEAD enabled? Due to our internal policy we are unable to just enable HEAD requests.

[akshayta23]

Yes, you would need to enable HEAD since this is a requirement from the marketplace. We understand that this might be a difficult change, but our internal policies require this for all offers to proceed with the submission. The Package Acceptance response also covers this requirement. Please let us know if you have any other questions.

[smieszkowsk]

Thank you, I'm checking with my team how we can resolve this.