Until now, API requests sent to dummy API were just lost in the void. In most cases this somehow worked as expected, but any logic which is waiting on a request to finish will potentially never get a response.
Going forward, I'm not 100% sure that every `Wait` on a web response will have local timeout logic (I think there is a certain amount of assumption that this is being managed for us by `APIAccess`), so I've made this change to better handle such cases going forward. Now, rather than nothing happening, requests will trigger a failure via the existing exception logic rather than silently pretending the request never arrived.
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