I have a webRequest.headersReceived listener on my extension and while Chrome and Firefox correctly calls the listener for 302 redirects with intermediate URLs, Safari does not.
adomasven
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My webRequest.headersReceived handlers for top frame receive a random number at details.frameId instead of 0 as per the spec.
The spec - https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest/onHeadersReceived specifies a type property:
type webRequest.ResourceType. The type of resource being requested: for example, "image", "script", "stylesheet".
UTF-8 characters in JS code strings such as ✕ or ’ are not handled properly and come out wrong when displayed/printed.
Setup:
A chrome.runtime.onMessage listener attached on the top frame which sends no response, and another listener attached on a frame which sends a response. The background page sends a message to the tab.
What happens:
The top frame listener is invoked and returns undefined. A response is returned to the background sendMessage call.
What should happen:
The listener on attached on a frame should be invoked after the top frame listener and checked for either a response or returning true with an intention to respond asynchronously and only then a response should be returned to the background page.