diff --git a/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilter.java b/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilter.java
index 6bd4d7debf..28697c3fb6 100644
--- a/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilter.java
+++ b/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -145,7 +145,7 @@ public class Saml2WebSsoAuthenticationRequestFilter extends OncePerRequestFilter
 		html.append("<!DOCTYPE html>\n");
 		html.append("<html>\n").append("    <head>\n");
 		html.append("        <meta http-equiv=\"Content-Security-Policy\" ")
-				.append("content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">\n");
+				.append("content=\"script-src 'sha256-oZhLbc2kO8b8oaYLrUc7uye1MgVKMyLtPqWR4WtKF+c='\">\n");
 		html.append("        <meta charset=\"utf-8\" />\n");
 		html.append("    </head>\n");
 		html.append("    <body>\n");
@@ -176,8 +176,8 @@ public class Saml2WebSsoAuthenticationRequestFilter extends OncePerRequestFilter
 		html.append("            </noscript>\n");
 		html.append("        </form>\n");
 		html.append("        \n");
+		html.append("        <script>window.onload = function() { document.forms[0].submit(); }</script>\n");
 		html.append("    </body>\n");
-		html.append("    <script>window.onload = () => document.forms[0].submit();</script>\n");
 		html.append("</html>");
 		return html.toString();
 	}
diff --git a/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilter.java b/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilter.java
index e0da44316c..35cb233bbf 100644
--- a/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilter.java
+++ b/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -203,10 +203,10 @@ public final class Saml2LogoutRequestFilter extends OncePerRequestFilter {
 		html.append("<!DOCTYPE html>\n");
 		html.append("<html>\n").append("    <head>\n");
 		html.append("        <meta http-equiv=\"Content-Security-Policy\" ")
-				.append("content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">\n");
+				.append("content=\"script-src 'sha256-oZhLbc2kO8b8oaYLrUc7uye1MgVKMyLtPqWR4WtKF+c='\">\n");
 		html.append("        <meta charset=\"utf-8\" />\n");
 		html.append("    </head>\n");
-		html.append("    <body onload=\"document.forms[0].submit()\">\n");
+		html.append("    <body>\n");
 		html.append("        <noscript>\n");
 		html.append("            <p>\n");
 		html.append("                <strong>Note:</strong> Since your browser does not support JavaScript,\n");
@@ -234,8 +234,8 @@ public final class Saml2LogoutRequestFilter extends OncePerRequestFilter {
 		html.append("            </noscript>\n");
 		html.append("        </form>\n");
 		html.append("        \n");
+		html.append("        <script>window.onload = function() { document.forms[0].submit(); }</script>\n");
 		html.append("    </body>\n");
-		html.append("    <script>window.onload = () => document.forms[0].submit();</script>\n");
 		html.append("</html>");
 		return html.toString();
 	}
diff --git a/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandler.java b/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandler.java
index be13490d72..7925ad359d 100644
--- a/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandler.java
+++ b/saml2/saml2-service-provider/src/main/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandler.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -119,10 +119,10 @@ public final class Saml2RelyingPartyInitiatedLogoutSuccessHandler implements Log
 		html.append("<!DOCTYPE html>\n");
 		html.append("<html>\n").append("    <head>\n");
 		html.append("        <meta http-equiv=\"Content-Security-Policy\" ")
-				.append("content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">\n");
+				.append("content=\"script-src 'sha256-oZhLbc2kO8b8oaYLrUc7uye1MgVKMyLtPqWR4WtKF+c='\">\n");
 		html.append("        <meta charset=\"utf-8\" />\n");
 		html.append("    </head>\n");
-		html.append("    <body onload=\"document.forms[0].submit()\">\n");
+		html.append("    <body>\n");
 		html.append("        <noscript>\n");
 		html.append("            <p>\n");
 		html.append("                <strong>Note:</strong> Since your browser does not support JavaScript,\n");
@@ -150,8 +150,8 @@ public final class Saml2RelyingPartyInitiatedLogoutSuccessHandler implements Log
 		html.append("            </noscript>\n");
 		html.append("        </form>\n");
 		html.append("        \n");
+		html.append("        <script>window.onload = function() { document.forms[0].submit(); }</script>\n");
 		html.append("    </body>\n");
-		html.append("    <script>window.onload = () => document.forms[0].submit();</script>\n");
 		html.append("</html>");
 		return html.toString();
 	}
diff --git a/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilterTests.java b/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilterTests.java
index 3544a65b7b..52c15e3cfc 100644
--- a/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilterTests.java
+++ b/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/Saml2WebSsoAuthenticationRequestFilterTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -170,8 +170,8 @@ public class Saml2WebSsoAuthenticationRequestFilterTests {
 		this.filter.doFilterInternal(this.request, this.response, this.filterChain);
 		assertThat(this.response.getHeader("Location")).isNull();
 		assertThat(this.response.getContentAsString()).contains(
-				"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">")
-				.contains("<script>window.onload = () => document.forms[0].submit();</script>")
+				"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-oZhLbc2kO8b8oaYLrUc7uye1MgVKMyLtPqWR4WtKF+c='\">")
+				.contains("<script>window.onload = function() { document.forms[0].submit(); }</script>")
 				.contains("<form action=\"https://sso-url.example.com/IDP/SSO\" method=\"post\">")
 				.contains("<input type=\"hidden\" name=\"SAMLRequest\"")
 				.contains("value=\"" + relayStateEncoded + "\"");
diff --git a/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilterTests.java b/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilterTests.java
index 20612cbec4..50b6b161b7 100644
--- a/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilterTests.java
+++ b/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2LogoutRequestFilterTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -118,8 +118,8 @@ public class Saml2LogoutRequestFilterTests {
 		assertThat(content).contains(Saml2ParameterNames.SAML_RESPONSE);
 		assertThat(content).contains(registration.getAssertingPartyDetails().getSingleLogoutServiceResponseLocation());
 		assertThat(content).contains(
-				"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">");
-		assertThat(content).contains("<script>window.onload = () => document.forms[0].submit();</script>");
+				"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-oZhLbc2kO8b8oaYLrUc7uye1MgVKMyLtPqWR4WtKF+c='\">");
+		assertThat(content).contains("<script>window.onload = function() { document.forms[0].submit(); }</script>");
 		verify(this.securityContextHolderStrategy).getContext();
 	}
 
diff --git a/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandlerTests.java b/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandlerTests.java
index c5e9cd1022..a32ed5289c 100644
--- a/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandlerTests.java
+++ b/saml2/saml2-service-provider/src/test/java/org/springframework/security/saml2/provider/service/web/authentication/logout/Saml2RelyingPartyInitiatedLogoutSuccessHandlerTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -98,8 +98,8 @@ public class Saml2RelyingPartyInitiatedLogoutSuccessHandlerTests {
 		assertThat(content).contains(Saml2ParameterNames.SAML_REQUEST);
 		assertThat(content).contains(registration.getAssertingPartyDetails().getSingleLogoutServiceLocation());
 		assertThat(content).contains(
-				"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-t+jmhLjs1ocvgaHBJsFcgznRk68d37TLtbI3NE9h7EU='\">");
-		assertThat(content).contains("<script>window.onload = () => document.forms[0].submit();</script>");
+				"<meta http-equiv=\"Content-Security-Policy\" content=\"script-src 'sha256-oZhLbc2kO8b8oaYLrUc7uye1MgVKMyLtPqWR4WtKF+c='\">");
+		assertThat(content).contains("<script>window.onload = function() { document.forms[0].submit(); }</script>");
 	}
 
 	private Saml2Authentication authentication(RelyingPartyRegistration registration) {
