Offline browsing

Issue description

Use ServiceWorker to allow rebrowsing of a web database.

Developer comments

It should be possible to browse the web database without a network connection. The index should be available. It should be possible to call the form to create new instances for topic types where it makes sense. The last n visited pages sould be available offline in a FIFO-cache. It is not possible to search, so the search icon should be hidden. This also indicates the offline state.

Important: A service worker once installed will always reupdate itself, even when the latest online version no longer registers a service worker.

Reporting date

2021-09-10

Reported by

Robert Cerny

Resolving date

2021-10-21

Resolved by

Robert Cerny

Resolved in version

Topincs 9.0.0

Part of

Offline availability through PWA(Enhancement)

Work sessions8

10404

10405

10406

10407

10408

10409

10414

10417

Helpful webpages7

paul.kinlan.me/…-page-with-service-worker/

gist.github.com/…fcc0cc45a8b4e1c279efd8a94

stackoverflow.com/…rving-in-service-worker

developers.google.com/…e-workers/lifecycle

stackoverflow.com/…on-each-individual-page

adactio.com/journal/15122