policeman 0.19pre1 breaks addon installation from about:addons

[welwood08]

The addon download is redirected to a CDN, but because about:addons is chrome there is no blocked entry shown in the popup even though the icon is fully red to indicate something was blocked.

[welwood08]

Correction, there really is no notification (green icon) and the problem is also present in pre0 - I was being thrown off by the Get Add-ons page loading. Searching immediately from any other section of about:addons and attempting to install results in "There was an error downloading [name]. Try again". Suspend on this tab doesn't help, Suspend operation does.

[welwood08]

Installations started working from my testing profile for some reason, so to be sure I created another test profile and reproduced the failure by:

• installing pre1 by dragging the .xpi file,
• searching for another addon through about:addons,
• attempting to install from the search results

I may try to narrow down what I did to the previous test profile to make it work tomorrow.