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modules:1.0.x:append_hf_hf_comments [2007/02/05 16:32] – 65.204.21.2modules:1.0.x:append_hf_hf_comments [Unknown date] (current) – external edit (Unknown date) 127.0.0.1
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 +When you use append_hf, the new headers are only used for messages that are sent!
 +Calling is_present_hf or a similar function will RETURN FALSE if you are looking for a header you added.
  
 +append_hf("Test: Test\r\n");
 +is_present_hf("Test"); <--- This will return FALSE
 +
 +route {
 +  append_hf("Test: Test\r\n");
 +  t_on_failure(2);
 +}
 +
 +failure_route[1] {
 +  is_present_hf("Test"); <--- This will return FALSE
 +}
 +
 +So this should not be used for storing any kind of state. This is mentioned only briefly in "known limitations" section.

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