UTF-8 error in mqttconnection

[Frida854]

When I run the example: 'mqttconnection', I only get the date once, and then restarts all the time, with 'host: "test.mosquitto.org".
But when I use 'mosquitto' on a Raspberripi P5, I get this error:
'/Users/poulborg/Projects/moddable/examples/network/mqtt/mqttconnection/main.js (37) # Break: fromArrayBuffer: invalid UTF-8!'
on line:
'mqtt.onMessage = (topic, body) => trace(received "${topic}": ${String.fromArrayBuffer(body)}\n);'

When I comment out this line, it runs without problems:
'mqtt.publish("moddable/mqtt/example/random", Math.random());'

I use a regular ESP32.

I am using latest update.

[phoddie]

Good find. Thank you for the report.

This was broken by recent work on conformance and optimization of ArrayBuffer.fromString(). The change accidentally removed the step of coercing the input argument to a string. It was failing when passed a number (the output of Math.random()).

The fix is to change this line:

moddable/xs/sources/xsDataView.c

Line 501 in 9b9e6a9

txString c = mxArgv(0)->value.string;

To

txString c = fxToString(the, mxArgv(0));

[Frida854]

Tested and ok.

[phoddie]

Thanks for the quick check! We'll get this integrated so no one else bumps into it.

[phoddie]

Just FYI - the commit is here.