Catch a possible null-dereference #8508
Merged
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In testing, I had an HTTP server that would server a 200 OK header, then crash, killing the connection.
The result was an exception in HTTPUpdater, which turned out to be due to passing a null pointer to
WiFiClient::stopAllExcept
In catching this, I've chosen to return
HTTPC_ERROR_CONNECTION_LOST
. This is an HTTPClient definition, rather than an HTTPUpdate one, which makes me a little uneasy. I've justified it to myself on the basis that:/// note we use HTTP client errors too [...]