Currently in my extension (version MV2) I am using chrome.webRequest.onHeadersReceived to modify response headers for a particular condition. And it is a blocking request. I read I should use declarativeNetRequest in MV3 version of extension. But I could not find the alternative for chrome.webRequest.onHeadersReceived in developer.chrome.com/docs. Any idea/suggestion to implement this scenario in MV3 extension?