SLO Request Failed In Azure

[ehabAbdelMawla]

I have a MultiSamlStrategy implementation with saml factory

    GetSamlConfiguration(config, accountKey, clientRedirectUrl) {
        return {
            entryPoint: config.SamlEntryPointUrl,
            signatureAlgorithm: 'sha256' as SignatureAlgorithm,
            issuer: config.SamlIssuer,
            idpCert: config.SamlCertificate,
            callbackUrl: this.GetCallBackUrl(accountKey, clientRedirectUrl),
            wantAssertionsSigned: true,
            wantAuthnResponseSigned: false
        };
    }
    onModuleInit() {
        passport.use(
            new MultiSamlStrategy(
                {
                    passReqToCallback: true,
                    getSamlOptions: async (req: any, Done) => {
                        try {
                            const { accountKey, clientRedirectUrl } = req.query;
                            console.log('getSamlOptions', { accountKey, clientRedirectUrl });
                            const config = await this.GenericRepository.GetAccountSsoConfigByKey(accountKey);
                            if (!(config && config.SsoType == SsoTypes.SAML)) {
                                throw new SsoException(ErrorCodesEnum.SSO_CONFIGURATION_NOT_FOUND);
                            }
                            return Done(null, this.GetSamlConfiguration(config, accountKey, clientRedirectUrl));
                        } catch (error) {
                            return Done(new SsoException(ErrorCodesEnum.SSO_CONFIGURATION_NOT_FOUND), null);
                        }
                    }
                },
                function (Req, Profile, Done) {
                    return Done(null, {
                        email: Profile.nameID
                    });
                },
                null
            )
        );
    }

    logout(req: any, res: any) {
        (passport as any)._strategy('saml').logout(req, function (err, logoutUrl) {
            if (err) {
                console.log({ err });
                return res.status(500).send('Error during logout');
            }

            console.log({ logoutUrl });
            return res.redirect(logoutUrl);
        });
    }

but i get following error in Microsoft AADSTS7500525: There was an XML error in the SAML message at line 1, position 445. Verify that the XML content of the SAML messages conforms to the SAML protocol specifications.

[ehabAbdelMawla]