iframe cross origin problem

[Akash Kumar]

Hi m trying to target video element in a iframe but m getting error 

Blocked a frame with origin "https://www.targetwebsite.com" from accessing a cross-origin frame.

How can i target video inside iframe if i get this error

[woxxom]

Add "all_frames": true in manifest.json, see https://developer.chrome.com/docs/extensions/reference/manifest/content-scripts and  https://stackoverflow.com/questions/8917593/do-chrome-extensions-access-iframes

[Akash Kumar]

Thanks

[woxxom]

I don't see your code, but judging by the error you're still trying to access the contents of iframe from outside, which won't work. The point of "all_frames": true is to have a separate instance of the content script running inside the iframe, so it can access its document directly.

On 08-Jun-24 13:57, Keval Kankrecha wrote:

in my case not working

1. self: Window {window: Window, self: Window, location: Location, closed: false, frames: Window, …}
2. then: [Exception: DOMException: Blocked a frame with origin "https://www.secop.gov.co" from accessing a cross-origin frame.]

[woxxom]

1. There's a typo: all_frame should be all_frames.

2. Your code is still accessing the iframe from outside (iframe.contentWindow). You don't need it, remove this code. Your content script is already running inside the iframe. Both instances of your content script receive the message in the main page and in the iframe. You can tell the difference by checking (window === top)

On 08-Jun-24 14:20, Keval Kankrecha wrote:
> chrome.runtime.onMessage.addListener(async (message) => {
>   console.log({ message });
>
>   iframe = document.querySelector('#iframeEauction');
>   console.log(iframe.contentWindow)
>   //error here
>   switch (message.action) {
>     case "startBiddingNow":
>       if (isAuctionStarted) startBidding();
>       break;
>     case "deleteAndBid":
>       if (!storage.detectAndStartBiddingRunning) {
>         startDetectAndBidding();
>       }
>       break;
>   }
> });
>
> On Sat, Jun 8, 2024 at 4:50 PM Keval Kankrecha <kkj6...@gmail.com> wrote:
>
>>>                             Please check code
>
>      {
>       "name": "SECOP Auction Bidding",
>       "description": "SECOP Auction Bidding automation",
>       "version": "1.0.0",
>       "manifest_version": 3,
>       "content_scripts": [
>         {
>           "run_at": "document_start",
>           "matches": ["https://www.secop.gov.co/*"],
>           "js": ["src/content-script.js"],
>           "all_frame":true
>         }
>       ],
>       "action": {
>         "default_popup": "src/popup/index.html"
>       },
>       "host_permissions": [
>         "https://www.secop.gov.co/*"
>       ],
>       "permissions": ["storage", "tabs"]
>     }
>

[woxxom]

Assuming you reloaded the extension in chrome://extensions page and reloaded the tab, the problem is in your other code and you'll have to debug it. Use devtools to set breakpoints and see what happens when the message arrives. Note that it will trigger more than one time because each instance of the content script receives a message. You can tell the difference by checking (window === top)

On 08-Jun-24 14:34, Keval Kankrecha wrote:

still problem is not solved provide me correct solution