I've started receiving notifications that URLs are changing on my flows with HTTP triggers, and have been working through updating those.
I have a few flows that are subscribed to webhooks, and I am running into a problem here.
Most of the time, when you subscribe to a webhook, an initial OPTIONS call is sent and you have to send a certain response to confirm the subscription. To do this in Power Automate, you manually set the trigger to use the OPTIONS method and add a Response action to send the proper response. Once that handshake is complete, you switch the trigger to POST and add the rest of your flow.
However, I can't seem to send an OPTIONS call to any of the new flow URLS. When I try to call it from another flow, I get a routenotfound error, and it tells me that my URL does not match any known API routes. I get similar errors when trying to subscribe to webhooks.
Are OPTIONS calls just not supported on the new HTTP trigger URLS? Is anyone else having more success with this than I am?
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