xls export is not working on https

I generate a html output

example:

<cfheader name="Content-Disposition" value="attachment; filename=bf_current_year_projects_not_funded.xls">

<cfcontent type="appliction/application/vnd.msexcel" reset="no"  > 

<cfoutput>

<table border="1" >

<tr>

                    <th colspan="8" align="center">B&F Current Year Projects Not Funded</th>

                </tr>

                <tr>

                    <th colspan="8" align="center"><cfoutput>#dateformat(now(),'mm/dd/yyyy')# #timeformat(now(),'hh:mm:tt')#</cfoutput> </th>

                </tr>

          <tr>

           <th>Fiscal Year  </th>

                      <th >City           </th>

        <th >Program Office                     </th>

        <th >Project Engineer  </th>

        <th >Project Title</th>

        <th >Status           </th>

        <th>Substantial Completion Date </th>

      <th nowrap="nowrap">Budget Amount </th>

     </tr>

<cfloop query="cynf">

     <tr>

                                    <td>#REQUESTED_YEAR#                                        </td>   

                    <td>#CITY#                                        </td> 

                    <td>#PROGRAM_OFFICE_ABBREV#                               </td>

                    <td>#engg#                     </td>

                    <td>  #PROJECT_TITLE#                                        </td>

                    <td>#Status#</td>

                    <td>#dateformat(SUBSTANTIAL_COMPLETION_DATE,'mm/dd/yyyy')#</td>

                    <td>$  #total_cost#                                        </td>

     </tr>

</cfloop>

</table>

</cfoutput>