Unsupported database file version or invalid header Prevent Caching of Redirects OM Web Viewer 14.0

Products

• Output Management Web Viewer

Issue/Introduction

After applying maintenance to OM Web Viewer 14.0, and now we are having issues with it. we are seeing unsupported database file version or invalid header

Environment

• Output Management Web Viewer™ for z/OS
• Edge Browser
• Chrome Browser

Cause

The initial error was as a result of the hold actions from LU08416 having never been completed 

Migrate an H2 database

The latest maintenance that was applied was expecting the H2 database to have been upgraded

The current maintenance was backed out:

1. Regress the WAR file
2. Restore the view loadlibrary 
3. Backout to the previous h2.jar version 

That the URL not working after backout was as a result of the browser cache attempting to redirect the URL to the upgraded UI.

Resolution

Clear browsing options to get around this problem.  Prevent Caching of Redirects

For Microsoft Edge:

1. Click the three dots (menu icon).
2. Go to "More Tools" and select "Developer Tools".
3. In the Network tab, check the box labeled "Disable Caching".
4. Open a new tab and enter the URL manually or paste it.

For Google Chrome:

1. Click the three dots (menu icon) and choose "Settings".
2. Navigate to "Privacy and Security".
3. Select "Clear browsing data".
4. Check only the box for "Cached images and files" and click "Clear data".
5. Return to the three dots menu.
6. Go to "More Tools" and select "Developer Tools".
7. Click the gear icon in the top right corner.
8. Under "Network," check the option "Disable cache (while DevTools is open)".
9. Finally, open a new tab and enter the URL manually or paste it.