Chrome Web Store shows extension as incompatible on ChromeOS for no obvious reason

[Manuel Braun]

I have an extension listed in the Chrome Web store, that suddenly started to become listed as "not compatible" on ChromeOS. The message in the tooltip reads: 

This application is not supported on this computer. Installation has been disabled. The following problems are detected: Java plugin is required by this app

What's interesting is, that the extension does not even has plugins section in the manifest.  I even tried adding the following section to the manifest, which according to the docs should list it as compatible, even if NPAPI plugins where used.

    "requirements": {
      "plugins": {
        "npapi": false
      }
    }

The extension uses NaCl, but has been using that for months before this issue started to appear. It doesn't use java or any other plugins.

It can still be installed on ChromeOS using inline installs. 

When I upload the exact same zip file as a new listing, it perfectly works, also on ChromeOS. So I'm pretty sure this is a bug on the Chrome Web Store.

I've already filed a bug on the chromium bug tracker, but it did not get any attention for weeks.

Has anybody had a similar issue and found some workaround?

[Antony Sargent]

FYI, I forwarded this to the webstore engineering team and they are taking a look at it. I think they may have temporarily applied a manual workaround so that it should become available on ChromeOS shortly, and hopefully they can prevent this from happening again. 

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[Manuel Braun]

Thank you!