html manifest attribute fixes: 1b)
1. Updating the cached resources WITHOUT modifying the Manifest file
b) users keep the same browser but clear the OfflineCache Folder → the website updates display
Otherwise the website's updates WON'T display; tests:
- NOT Ok: re-accessing the page in a new tab
- NOT Ok: refreshing the page
- NOT Ok: closing /re-opening browser and re-accessing the page
Conclusion: if you update a cached resource without modifying the Manifest file, one way of seeing website's updates is to clear the Offline cached data...but waiting and hoping for the user to do this in order to see fresh updates is not a SOLUTION(video demo for example purpose)
Video demonstration html manifest attribute: Fixes 1b)
HTML5 manifest file Fixes, Tutorial
| min | video details |
|---|---|
| 00:02 | open browser |
| 00:09 | clear everything: cache, offline data, cookies... |
| 00:13 | accessing the about:cache page |
| 00:19 | the Offline cache directory is empty |
| 00:23 | accessing an html file linked to a manifest file |
| 00:25 | Allow data storage for Offline use |
| 00:31 | accessing the List of Cache Entries |
| 00:33 | 5 resources have been stored locally, in Offline Cache Directory |
| 00:42 | Note: main.css is a cached resource |
| 00:46 | we will modify the main.css file, by changing h1's color from orange to green |
| 01:04 | saving the modification; the cached resource, main.css, has been updated |
| 01:08 | re-uploading the cached resource, main.css, on Server Will the user see the update ? |
| 01:15 | Test 1: re-accessing the page in a new tab Test result: NOT OK the cached resource, main.css, didn't get updated |
| 01:21 | Test 2: refreshing the page Test result: NOT OK the cached resource, main.css, didn't get updated |
| 01:24 | Test 3: closing and reopening the browser AND re-accessing the page Test result: NOT OK the cached resource, main.css, didn't get updated |
| 01:34 | Test 4: clearing the Offline Data, stored in Offline Cache Directory checking OfflineCache directory: empty refreshing the page Test result: OK the cached resource, main.css, still didn't get updated SO we deleted them and by refreshing the page, a fresh updated copy has been re-cached. |
| 01:57 | another way of deleting the Offline cached resources from: Tools → Options → Advanced → Network |