Update app-service-ip-restrictions.md

[Ramyaharinarthini]

Added 162 line++ X-FD-HealthProbe is Custom header for identifying the health probe of the reverse proxy. Azure Front Door sends "1" to uniquely identify a health probe request. The header can also be used for non-Microsoft proxies to identify health probes. Accepts any string up to 64 characters in length.

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[Court72]

@madsd

Can you review the proposed changes?

Important: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
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[madsd]

Hi @Court72, @Ramyaharinarthini. I don't think it makes sense just copying the description from one of the headers from this page (https://learn.microsoft.com/en-us/azure/app-service/overview-access-restrictions#http-header-filtering-for-site-access-restriction-rules) - better to change it to reference the specific section from the overview page.

[madsd]

I don't think it makes sense just copying the description from one of the headers from this page (https://learn.microsoft.com/en-us/azure/app-service/overview-access-restrictions#http-header-filtering-for-site-access-restriction-rules) - better to change it to reference the specific section from the overview page.