set method

void set(
  1. String name,
  2. String value
)

The set() method of the Headers interface sets a new value for an existing header inside a Headers object, or adds the header if it does not already exist.

The difference between set() and Headers.append is that if the specified header already exists and accepts multiple values, set() overwrites the existing value with the new one, whereas Headers.append appends the new value to the end of the set of values.

For security reasons, some headers can only be controlled by the user agent. These headers include the and .

Implementation

external void set(
  String name,
  String value,
);