Inject header for a specific request for a specific type

[Jordan Cohen]

site 1 has image.png

site 2 wants to fetch image.png from site 1

CORs normally blocks this type of request. My ask is simply to add a 

```

Access-Control-Allow-Origin: *

```

...response header when site 2 fetches from site 1. For the life of me there is no combination of configuration I can slap together to get this to work. So far this is what I am doing, any help would be greatly appreciated. The has been the hardest api to understand in all my years of working in technology but some considerable margin.

```

{

    manifest_version: 3,

...

    

    "permissions": [
      "declarativeNetRequest",
      "declarativeNetRequestWithHostAccess",
      "declarativeNetRequestFeedback",
      "scripting",
      "activeTab"
    ],
    "host_permissions": ["https://*.site-1.com/*", "https://*.site-2.com/*"],

    "declarative_net_request": {
      "rule_resources": [
        {
          "id": "ruleset_1",
          "enabled": true,
          "path": "rules.json"
        }
      ]
    },
  }

}

```

 

```

[
  {
    "id" : 1,
    "priority": 1,
    "action": {
      "type": "modifyHeaders",
      "responseHeaders": [
        { "header": "Access-Control-Allow-Origin", "operation": "set", "value": "*" }
      ]
    },
    "condition" : {
      "urlFilter" : "https://*.site-1.com/*",

      "initiatorDomains": ["https://*.site-2.com/*"]

      "resourceTypes" : ["image"]
    }
  }
]

```

Thanks in advanced

 

[Jordan Cohen]

So it seems declarativeNetRequestWithHostAccess does work when used with requestHeaders but it won't work with responseHeaders? Is this a bug?

[Jordan Cohen]

bleh i meant to say declarative_net_request not declarativeNetRequestWithHostAccess

[Patrick Kettner]

Hey Jordan!

I believe you are hitting this bug. The modification is happening, but it is not reflected in the devtools UI

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[Olga Obasja]

пн, 10 июл. 2023 г., 4:33 Jordan Cohen <hype...@gmail.com>:

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