Rework Cypress check uncaught exception. (#3353)

* Fix uncaught:exception

* Rename var

tests/cypress/support/index.js

@@ -17,10 +17,10 @@ before(() => {
     cy.closeModalUnsupportedPlatform();
 });
 
-const resizeObserverLoopErrRe = /^[^(ResizeObserver loop limit exceeded)]/;
+const resizeObserverLoopErr = 'ResizeObserver loop limit exceeded';
 Cypress.on('uncaught:exception', (err) => {
-    if (resizeObserverLoopErrRe.test(err.message)) {
-        // the exception is generated by cypress in some browsers
+    // the exception is generated by cypress in some browsers
+    if (err.message.includes(resizeObserverLoopErr)) {
         return false;
     }
 });