Couple days ago MS released the Native Messaging support in the MS Edge. I've tried to debug the already working Chrome-based extension which uses Native Messaging Host under MS Edge and it failed with error: "Native Messaging not supported for non-packaged extension". There are no documentation about Native Messaging manifest registration (I mean the registry key), the format of the manifest file (everyone knows that NMH manifest for Chrome & Firefox is a little different). When this documentation will be available? And how can I debug the unpacked extension with NMH under MS Edge?
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The official document give the explanation for the error "Native Messaging not supported for non-packaged extension".
The Edge extension platform restricts the native messaging host to being a UWP app that is packaged in the same AppX as the extension.
NMH for Edge must be an Universal Windows Platform (UWP) app which register an AppService.
NMH for Chrome/Firefox is not supported because the communication protocol of Edge's native messaging is totally different.
