Latest code/html changes not visible in browser.

[Ionaru]

🐞 Bug report

Command (mark with an x)

- [ ] new
- [ ] build
- [x] serve
- [ ] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Is this a regression?

Yes, the previous version in which this bug was not present was: 8.0.2

Ancient issue that described the same problem: #5117

Description

Auto-reload does not reload latest changes into the browser, instead the one before last change is visible.

🔬 Minimal Reproduction

1. ng new --style=scss --enable-ivy --routing reload-test
2. ng g component home
3. Add {component: HomeComponent, path: ''} as route to app-routing.module.ts
4. ng serve
5. Open webpage on http://localhost:4200
6. Change some HTML or code in HomeComponent.
7. Save (Recompile will trigger & webpage will reload).
8. Change is not visible.
9. Make another change in HomeComponent.
10. Save (Recompile will trigger & webpage will reload).
11. First change is visible, but second change isn't.

🌍 Your Environment

Angular CLI: 8.0.3
Node: 12.3.1
OS: win32 x64
Angular: 8.0.1
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.800.3
@angular-devkit/build-angular     0.800.3
@angular-devkit/build-optimizer   0.800.3
@angular-devkit/build-webpack     0.800.3
@angular-devkit/core              8.0.3
@angular-devkit/schematics        8.0.3
@angular/cli                      8.0.3
@ngtools/webpack                  8.0.3
@schematics/angular               8.0.3
@schematics/update                0.800.3
rxjs                              6.4.0
typescript                        3.4.5
webpack                           4.30.0

Additional information

A few things I've noticed:

• Subsequent saves will trigger another recompile, even though nothing was changed. Each new build also has a unique hash, which is strange because nothing changed.
• Changes to AppComponent do show up when reloading the webpage. (Problem seems isolated to routes)

[Ionaru]

2019-06-17 23:33 UTC: Updated original comment with better reproduction steps and additional information.

[alan-agius4]

Duplicate of angular/angular#30947

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