In manifest v2, I've used chrome.runtime.getPackageDirectoryEntry in the background script to list all the files within a subfolder that came with the extension to realize a specific design feature.
Now that Google is forcing me to migrate my extension from manifest v2 standard to manifest v3, I tried to do the same feature using the chrome.runtime.getPackageDirectoryEntry method but chrome would simply report this error:
Uncaught TypeError: chrome.runtime.getPackageDirectoryEntry is not a function
Can anyone help with this please? or provide an alternative method for me to list all the filenames in a specified subfolder that would be shipped within the extension?
After some trial and error, I've found a workaround!
For those having the same problem, one can simply choose to invoke the chrome.runtime.getPackageDirectoryEntry method in a js script that is added onto the pupup html of the chrome extension.