chrome.runtime.onMessage.addListener(
function(props) {
switch(props.request_type) {
case 'msg':
websocketClass.msgSubmit(props.data)
break;
case 'url':
websocketClass.msgSubmit(props.data)
break;
case 'his':
sendResponse({his: websocketClass.messages});
}
}
);
I am encountering a problem where, despite having @types/chrome added, sendResponse is still throwing the error mentioned above. Can anyone suggest a solution to make this function properly?
sendResponse is specified as a parameter of the listener and is not a global symbol, ensure you include it in your function as per the documentation.
switch will not match, as it only assigns values to request_type ('msg', 'url', 'his').
chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {
switch (msg.request_type) {
case 'msg':
case 'url':
websocketClass.msgSubmit(msg.data);
break;
case 'his':
sendResponse({ his: websocketClass.messages });
case 'foo':
callFunctionThatReturnsPromise(msg).then(sendResponse);
// If using sendResponse asynchronously, add `return true` to keep the internal channel open.
}
});
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