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What were you doing?

While reproducing Bug 1872413, I opened the link that establishes a connection with server to receive SSE.
I noticed the difference between the way Firefox displays Server Sent events with Chrome and Safari.

1. Open devtools in Firefox
2. Open the link -> https://berean-biblechurch.org/fxssebug.html
3. Observe the network tab for incoming SSE from the server. Firefox does not display the request until we close the connection (known problem with devtools).

What happened?

The type column in the network tab displays as event-stream whereas chrome and safari displays it as eventsource.

What should have happened?

Firefox displays the type as eventsource similar to chrome and safari. Please find the attached screenshots for reference

Thanks for filing. While showing event-stream is not necessarily incorrect (the response does come with content-type text/event-stream), showing eventsource to have consistency with other devtools UIs sounds good.

Can be a mentored bug.