'web_accessible_resources' manifest key is ignored for injected scripts/CSS

[Savr G]

Recently my extension stopped working (although it was working before). After some research I found out that now injected scripts/CSS fail to load - I get net::ERR_BLOCKED_BY_CLIENT message in console. These necessary resources are injected by my content script via document.createElement.

Below is "web_accessible_resources" key in my manifest:

  "web_accessible_resources": [

    {

      "resources": [

        "harviewer/*",

        "connection.js"

      ],

      "matches": [

        "<all_urls>"

      ]

    }

  ],

AFAIU it is correct, otherwise I'd get another error message.

I have no adblock-like extensions installed. Also I've tried to clear browser cache, with no luck.

So is it a bug or a feature? The current Chrome Dev docs don't contain any mention of such behaviour.