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Decode back possible Base64-encoded state in responseHandler #666

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Decode back possible Base64-encoded state in responseHandler #666

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8 changes: 8 additions & 0 deletions src/hello.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1303,6 +1303,14 @@ hello.utils.extend(hello.utils, {
// Is this an auth relay message which needs to call the proxy?
p = _this.param(location.search);

// Decode back possible Base64-encoded state
if (p && p.state) {
const base64regex = /^([0-9a-zA-Z+/]{4})*(([0-9a-zA-Z+/]{2}==)|([0-9a-zA-Z+/]{3}=))?$/;
if (base64regex.test(p.state)) {
p.state = window.atob(p.state);
}
}

// OAuth2 or OAuth1 server response?
if (p && p.state && (p.code || p.oauth_token)) {

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