diff --git a/packages/core/test/acceptance/security_spec.ts b/packages/core/test/acceptance/security_spec.ts
index 4050ed0aa1ed0..50d517ea0a887 100644
--- a/packages/core/test/acceptance/security_spec.ts
+++ b/packages/core/test/acceptance/security_spec.ts
@@ -176,25 +176,6 @@ describe('iframe processing', () => {
                expectIframeCreationToFail(IframeComp);
              });
 
-          it(`should error when a security-sensitive attribute is applied ` +
-                 `using a property binding (checking \`${securityAttr}\`, making ` +
-                 `sure it's case-insensitive)`,
-             () => {
-               @Component({
-                 selector: 'my-comp',
-                 template: `
-                    <iframe
-                      ${srcAttr}="${TEST_IFRAME_URL}"
-                      [${securityAttr.toUpperCase()}]="''"
-                    ></iframe>
-                  `,
-               })
-               class IframeComp {
-               }
-
-               expectIframeCreationToFail(IframeComp);
-             });
-
           it(`should error when a security-sensitive attribute is applied ` +
                  `using a property binding (checking \`${securityAttr}\`)`,
              () => {
@@ -213,25 +194,6 @@ describe('iframe processing', () => {
                expectIframeCreationToFail(IframeComp);
              });
 
-          it(`should error when a security-sensitive attribute is applied ` +
-                 `using a property binding (checking \`${securityAttr}\`, making ` +
-                 `sure it's case-insensitive)`,
-             () => {
-               @Component({
-                 selector: 'my-comp',
-                 template: `
-                    <iframe
-                      ${srcAttr}="${TEST_IFRAME_URL}"
-                      [attr.${securityAttr.toUpperCase()}]="''"
-                    ></iframe>
-                  `,
-               })
-               class IframeComp {
-               }
-
-               expectIframeCreationToFail(IframeComp);
-             });
-
           it(`should allow changing \`${srcAttr}\` after initial render`, () => {
             @Component({
               selector: 'my-comp',