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How to handle Geolocation errors in HTML5?
HTML5 Geolocation API lets you share your location with your favorite websites. A JavaScript can capture your latitude and longitude and can be sent to backend web server and do fancy location-aware things like finding local businesses or showing your location on a map.
Geolocation is complicated, and it is very much required to catch any error and handle it gracefully.
The geolocations methods getCurrentPosition() and watchPosition() make use of an error handler callback method which gives PositionError object. This object has following two properties −
Property | Type | Description |
Code | Number | Contains a numeric code for the error. |
message | String | Contains a numeric code for the error. |
The following table describes the possible error codes returned in the PositionError object.
Code | Constant | Description |
| 0 | UNKNOWN_ERROR | The method failed to retrieve the location of the device due to an unknown error. |
| 1 | PERMISSION_DENIED | The method failed to retrieve the location of the device because the application does not have permission to use the Location Service. |
| 2 | POSITION_UNAVAILABLE | The location of the device could not be determined. |
| 3 | TIMEOUT | The method was unable to retrieve the location information within the specified maximum timeout interval. |
Here’s how you can make use of the PositionError object. The errorHandler method is a callback method −
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