Skip to main content
Version: 4.17.3

Remove Headers Component

The Remove Headers component allows you to remove headers that are not needed anymore from an exchange.

Configuration​

The Remove Headers component has the following configuration options:

Pattern​

Specify the regular expression(s) for the headers that should be removed.

Exclude​

Specify the regular expression(s) for the headers that should be ignored.

Regular expressions​

You can use:

  • text to specify a header name, in this case the header named text.
  • * to remove all headers.
  • | as a separation symbol to specify a list of headers that should be removed or excluded.
  • () to encapsulate an expression:
    • (text_*) will remove or exclude all headers starting with text_[something].
    • (*_text) will remove or exclude all headers ending with [something]_text.
case sensitivity

Headers in Dovetail are case-insensitive, but the Remove Headers component works in a case-sensitive way. For example: a header with the name Subject will not be removed when you specify subject in the Pattern option.

remove all

When you use the * wildcard in the Pattern attribute not all headers are removed. Some headers, like breadcrumbId, are excluded from removal because they are used by the backend.

Using Remove Headers​

If you configure the Remove Headers component with the following settings:

  • Pattern: *
  • Exclude: (text_*)|text3

And there is an exchange with the following headers: text_1, text2, text3 and text_.

The results is that text_1 and text2 will be removed. While text3 and text_ will be ignored.

Last update on Jan 8, 2024