AOT compilation breaks RegExp in idsRegExp

[Sturgelose]

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I'm submitting a ...

• [X] bug report

• [ ] feature request

• [ ] question about the decisions made in the repository

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem Create an angulartics module with configuration:

  const ANGULARTICS_CONF: Partial<Angulartics2Settings> = {
  pageTracking: {
  clearIds: true,
  idsRegExp: new Regex('^(([a-z0-9]{14}(:[a-z0-9]{6})?)|DEMO)$'),
  clearQueryParams: true
  }
  };

And compile the application with AOT.

Then, check any URL matching this regex

NOTE: I'm using this RegEx as example, but this happens with any other Regex as well

• What is the expected behavior?

The ids matching the regex to be filtered out. However, this does not happen. I've ben debugging in lower level, and it seems that using a regular expression with new Regex() ends with Angulartics2 loading the default value instead.

A workaround is to write it as a string and skipping the typescript checks.

// @ts-ignore
    idsRegExp: '^(([a-z0-9]{14}(:[a-z0-9]{6})?)|DEMO)$',

I have also seen that I'm not the only one with the same issue: https://stackoverflow.com/questions/54826529/angulartics-new-regexp-doesnt-appear-in-aot

• What is the motivation / use case for changing the behavior? If you try with JIT, it works as expected, but AOT seems to be breaking the regex somehow.

• Environment:

  
  Angular CLI: 7.3.3
  Node: 11.9.0
  OS: darwin x64
  Angular: 7.2.6
  ... animations, common, compiler, compiler-cli, core, forms
  ... language-service, platform-browser, platform-browser-dynamic
  ... router, service-worker

Package Version

@angular-devkit/architect 0.13.3 @angular-devkit/build-angular 0.13.3 @angular-devkit/build-optimizer 0.13.3 @angular-devkit/build-webpack 0.13.3 @angular-devkit/core 7.3.3 @angular-devkit/schematics 7.3.3 @angular/cdk 7.3.3 @angular/cli 7.3.3 @angular/flex-layout 7.0.0-beta.23 @angular/material 7.3.3 @angular/pwa 0.13.3 @ngtools/webpack 7.3.3 @schematics/angular 7.3.3 @schematics/update 0.13.3 rxjs 6.4.0 typescript 3.2.4 webpack 4.29.0

[mtraynham]

I ran into this as well. I've reported it to the Angular repo here https://github.com/angular/angular/issues/29668

Thanks for the string workaround though, seems like it should work for the regex match here.