I don't know anything about HTML, but I want to extract the % probability of the Northern lights being visible from this webpage http://aurorawatch.ca/. I entered this into the URL field, and selected HTML version 1.
When I inspect the text element I want and copy the Xpath I get the following:
and enter this into the "parse string" field of the ThingSpeak API app, but get the following error:
"Error parsing document, try a different parse string."
Most people who get this error seem to be getting data that doesn't load with the original page, so I think I must be missing something.
If there is a better solution for pulling this number to my ESP8266 than creating a thingspeak API, I would love to hear it too!