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Append .well-known/openid-configuration to iss claim URL upfront #47

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mikehaas763 wants to merge 3 commits into from
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Append .well-known/openid-configuration to iss claim URL upfront #47

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0605cbf
Initial plan
Copilot Feb 20, 2026
a2fefcd
Fix fetchJwks to handle network errors and non-OK responses from bare…
Copilot Feb 20, 2026
4555bef
Append .well-known/openid-configuration to iss URL upfront instead of…
Copilot Feb 20, 2026
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8 changes: 6 additions & 2 deletions src/Pages/Home/JwtDecoder/JwtDecoder.cshtml
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Original file line number Diff line number Diff line change
Expand Up @@ -638,7 +638,7 @@
let jwksUrl = jwksUrlField.val().trim();
if ((!jwksUrl || isPristine) && payload && payload.iss) {
// If no JWKs URL is provided (or previously set from a different token's issuer), use the issuer from the payload.
jwksUrl = payload.iss;
jwksUrl = appendDiscoveryPath(payload.iss);
jwksUrlField.val(jwksUrl);
}

Expand Down Expand Up @@ -769,6 +769,10 @@
}
}

function appendDiscoveryPath(url) {
return url + (url.slice(-1) === '/' ? '' : '/') + '.well-known/openid-configuration';
}

async function fetchJwks(url) {
const response = await fetch(url);
if (!response.ok) {
Expand All @@ -783,7 +787,7 @@
}
else {
// retry with a discovery document
return await fetchJwks(url + (url.slice(url.length - 1) === '/' ? '' : '/') + '.well-known/openid-configuration');
return await fetchJwks(appendDiscoveryPath(url));
}
}

Expand Down