Uncaught TypeError: data.indexOf is not a function in _handle_msg_from_outside method in host.js

[joeyaza]

I get the above error as it expects data to be a string but in my case is coming in as an object from the PostMessage. And running .indexOf on a non-string throws an error. Is there any way to counter this? potentially, data could be stringified so its certain to be a string? or typeof data could be ascertained prior to make sure it is a string before running the indexOf method..

[seansd-zz]

Yeah the code was written before automatic JSON parsing of objects sent via postMessage started happening. Since the communication protocol is always expected to be a string internally I would do a typeof check and then reject the message if it's not a string.

[joeyaza]

shall I change and make a PR ?

[seansd-zz]

sure go for it

[kevingilbert100]

Any update here?

[hotbrainy]

I have same issue. how can it be solve?