disable strict mode angular
//Following Angular doc, the strict mode can be
//disabled turning off these flags on tsconfig.json file:
"forceConsistentCasingInFileNames": false,
"strict": false,
"noImplicitReturns": false,
"noFallthroughCasesInSwitch": false,
...
"angularCompilerOptions": {
"strictInjectionParameters": false,
"strictInputAccessModifiers": false,
"strictTemplates": false
}