I figured out why this is happening.
Plume uses nostr-login, which inserts itself between the page and your signer so it can pass messages along, instead of talking to the signer directly. Sidecar doesn’t support that, so the login button appears to do nothing.
The nostr-login library comes from nostr.band, a service that has shut down and is no longer maintained. I’d suggest replacing it with a direct connection to the signer extension through window.nostr, which is how most modern NIP-07 clients work.
npub1ae…q4nwx
2026-10-02 20:05:41 UTC
in reply to nevent1q…y6gt
Author Public Key
npub1aeh2zw4elewy5682lxc6xnlqzjnxksq303gwu2npfaxd49vmde6qcq4nwxPublished at
2026-10-02 20:05:41 UTCEvent JSON
{
"id": "000001e5b7210943a030bfd6e040d9c4d9437075e98c6d9ac5cc3744fc65823e",
"pubkey": "ee6ea13ab9fe5c4a68eaf9b1a34fe014a66b40117c50ee2a614f4cda959b6e74",
"created_at": 1790971541,
"kind": 1,
"tags": [
[
"e",
"ab60a67d7e9b5ccaa1ab25e210353b6dcc45b3ec2dec708c8b8738031d9d8b7a",
"wss://nos.lol/",
"root",
"c7fe92f80c516c0c54b15e8d256ac07281036d934ea1ff39fb0cd8a0fd677736"
],
[
"e",
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"wss://relay.plume.website/inbox",
"reply",
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],
[
"p",
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],
[
"client",
"jumble"
],
[
"nonce",
"29732",
"20"
]
],
"content": "I figured out why this is happening.\n\nPlume uses nostr-login, which inserts itself between the page and your signer so it can pass messages along, instead of talking to the signer directly. Sidecar doesn’t support that, so the login button appears to do nothing.\n\nThe nostr-login library comes from nostr.band, a service that has shut down and is no longer maintained. I’d suggest replacing it with a direct connection to the signer extension through window.nostr, which is how most modern NIP-07 clients work.",
"sig": "0bd35074c3bfe8403cfa676637cceba0e5cde12762edff80ddffe67a777f8cfdae25c91bc93b20753d4cc11bb986d7559297c772bdd4997a2fe0e799b3442ec1"
}