IMPORTANT: A quick fix I found is to use only absolute url when navigating. This can be painful since you have to re-take everytime any parameter in the url and pass it again, but at least in this way the app can work.

And please @louis-raine @sachst1000 remove +1 and “same issue” comments. If you have this problem too and have nothing to add, just put a thumb up! Thanks a lot 😃

This seems to work for me:

https://gist.github.com/TiVoMaker/825b48ed79f871adbf588eb27e59c126

Sadly this workaround doesn’t work if you have required parameters inside the url. Here’s a change I did to make it work in this case.

import { Injectable } from '@angular/core';
import { NavigationExtras, Router } from '@angular/router';

@Injectable({ providedIn: 'root' })
export class FixRoute {
  constructor(private router: Router) {}

  navigate(
    paths: any[],
    extras: NavigationExtras = { skipLocationChange: false }
  ): Promise<boolean> {
    if (!extras.relativeTo) {
      return this.router.navigate(paths, extras);
    }

    const unmergedSegments = extras.relativeTo.snapshot.pathFromRoot
      .slice(1)
      .map(p => {
        return p.url.map(u => u.path);
      });
    const segments = [].concat(...unmergedSegments);
    paths.forEach(s => {
      if (typeof s === 'string') {
        const pathParts = s.split('/');
        pathParts.forEach(p => {
          if (p !== '..' && p !== '.') {
            segments.push(p);
          } else if (s !== '.') {
            segments.pop();
          }
        });
      }
    });

    extras = Object.assign({}, extras);
    delete extras.relativeTo;
    return this.router.navigate(segments, extras);
  }
}

This seems to work for me:

https://gist.github.com/TiVoMaker/825b48ed79f871adbf588eb27e59c126

Hi everyone,

This issue has been fixed with the release of Ionic 4.2.0. Please update to that version, and let me know if you are still experiencing any issues.

Thanks!

This still happens even with absolute urls especially when making use of back buttons and goBack() in rapid succession.