Offline caching: Try To fetch latest data first then shift to cached one.

[vivek-30]

Fixes #1237.
finally there is no such problem of having cached data every time . Service worker will now look for latest data first and then shift to cached one if request became unsuccessful.

[gitpod-io]

[vivek-30]

@jywarren , @harshkhandeparkar could you please review this ☺️

[harshkhandeparkar]

Sorry but my knowledge about service workers is just shy of -1 😂

[vivek-30]

Sorry but my knowledge about service workers is just shy of -1 😂

No problem @harshkhandeparkar 😊. you have a wide spectrum of knowledge though😅.

[jywarren]

Ah, interesting. Is this something we can write a test for as well?

Is there a loading indicator shown while trying to fetch? I'm imagining a slow internet connection, or a 502 error, and if there'd be an option to bypass the wait and use the cache?

Thank you @vivek-30 this is cool!

[vivek-30]

@jywarren i will add a loading animation for this and taking about the test . i have already created it when i solved another problem related to service worker
for this problem i have modified some code accordingly

[vivek-30]

hope you remember. btw great to see you after 3 days 😊

[vivek-30]

trying to bypass the wait is something which i feel is a little impractical. may be as the rendering time will be so quick even in slow connection and switching in the timeframe may lead to some unavoidable issues

[vivek-30]

still i will see what cool stuff i can generate meanwhile thanks☺️

[vivek-30]

@jywarren Did all the requested changes -

Screen.Recording.2021-02-25.at.1.34.51.PM.mov

Also the loading animation is already present in the sequencer 😅 ,and thing which you want will require some ajax requests but as this is a single page application that kind of loading will not be required at all
but now there will be a good offline experience for a user.it will be pre-cached auto. while installing a new service worker.

[vivek-30]

hope you like this 😊

[jywarren]

Very nicely done. Thank you so much!!!