fix: disable service workers in cypress (#830)

Co-authored-by: Dominik Pschenitschni <mail@celement.de>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/830
Reviewed-by: konrad <k@knt.li>
Co-authored-by: dpschen <dpschen@noreply.kolaente.de>
Co-committed-by: dpschen <dpschen@noreply.kolaente.de>

cypress/support/index.js

@@ -2,3 +2,10 @@
 import './commands'
 import 'cypress-file-upload'
 import '@4tw/cypress-drag-drop'
+
+// see https://github.com/cypress-io/cypress/issues/702#issuecomment-587127275
+Cypress.on('window:before:load', (win) => {
+	// disable service workers
+	// @ts-ignore
+	delete win.navigator.__proto__.ServiceWorker
+})