It does not seem to do any replacement for me: 
  DB<1> $_ = "this is not OK < but this is ok <url>";

  DB<2>  s/<|>//g unless /(\<\burl\b\>)/i;

  DB<3> p $_
this is not OK < but this is ok <url>

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In reply to Re: Hazardous characters filter by Laurent_R
in thread Hazardous characters filter by Anonymous Monk

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