Question

context.setLineDash() works in Chrome, but in FireFox 18.0.1 results in

TypeError: this.setLineDash is not a function

deep in the bootstrap.dart.js file.

Even if I use this function

void setLineDashCatch(var ctx,var param) {
  try {
    ctx.setLineDash(param);
  } on Exception catch (e) {
    log('SetLineDash exception');
  }
}

The exception is not caught, and the method is aborted.

What is the best way to avoid the method being aborted?

Answer 1

You don’t get the log because it is not an Exception that is thrown. It is rather a NoSuchMethodError. The following code should work :

void setLineDashCatch(var ctx,var param) {
  try {
    ctx.setLineDash(param);
  } on NoSuchMethodError catch (e) {
    print('SetLineDash exception');
  }
}