Testing https://github.com/jakearchibald/simple-serviceworker-tutorial

test

# Test 1:

1) Cloned the repo
2) Started Server via 
```
npm install http-server -g
http-server -c-1
'''
3) Opened page https://localhost:8080/
4) Reloaded -  got console message "This page is controlled by a ServiceWorker"
5) Shut down node server and disabled internet connection - reloaded page - script.js failed



# Test 2:

1) Cloned the repo
2) Started Apache Server
3) Opened page http://localhost/bla/bla/simple-serviceworker-tutorial/
4) Reloaded - got console message "This page is controlled by a ServiceWorker"
5) Shut down Apache server and disabled internet connection - reloaded page - loaded from ServiceWorker



# Test 3:

1) Cloned the repo
2) Started Server via 
```
python -m SimpleHTTPServer
'''
3) Opened page https://localhost:8000/
4) Reloaded -  got console message "This page is controlled by a ServiceWorker"
5) Shut down python server and disabled internet connection - reloaded page - script.js failed



# Test 4:

1) Cloned the repo on my server (Apache 2.2)
2) Opened page https://justmarkup.com/sw/2/simple-serviceworker-tutorial/
4) Reloaded - got console message "This page is controlled by a ServiceWorker"
5) Disabled internet connection - reloaded page - script.js loaded from ServiceWorker