Update planetxsdk.js

70번째 라인에서 인증 path맨 마지막에 '/' 삭제 필요
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this.login_form.action = "https://oneid.skplanetx.com/oauth/authorize/"; => 아래와 같이 수정 검토 필요 this.login_form.action = "https://oneid.skplanetx.com/oauth/authorize";
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