For example just try to write the following line and you will get rejected for suspicious input:
<code><head></code>
This is the Drupal XSS filter, not codefilter.module doing this. The XSS filter has been rewritten for 4.7 though and no longer aborts the request incorrectly.
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Comment #1
Steven commentedThis is the Drupal XSS filter, not codefilter.module doing this. The XSS filter has been rewritten for 4.7 though and no longer aborts the request incorrectly.