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Using JS from another site

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Allen Hall

New Around Here



Posts:20
New Around Here




2/20/2023 12:15 AM

    Will DNN render/inject JS sourced from another site? Eg…

    <script src="https://www.paypal.com/sdk/js?client-id=sb&enable-funding=venmo&currency=USD" data-sdk-integration-source="button-factory"></script>

    Lots of post/help about placing JS in module headers and elsewhere but no examples I have found so far show/discuss when the JS is on anothe site. :-(

    Thanks for any help!






    Michael Tobisch

    Veteran Member



    Posts:1124
    Veteran Member




    2/20/2023 1:47 AM

      Allen,

      sure it will work - but...

      • there might be some firewall rules on the client side that block them (and you have no influence on that, except for intranet sites)
      • there might be some WAF rules that block them
      • there might be a CSP that blocks them
      • etc.

      So better check before setting them in production.

      To inject these scripts, you might add the line in the skin ascx file (if you need it on every page), or a copy of the skin file that you use only for the pages where you need it. Or you use Will Strohl's Content Injection module. This is a better way than using module headers or footers...

      Happy DNNing!
      Michael

       

      Michael Tobisch
      DNN★MVP

      dnnWerk Austria
      DNN Connect





      Allen Hall

      New Around Here



      Posts:20
      New Around Here




      2/20/2023 10:18 PM

        So DNN itself doesn't do anything to block them?






        Michael Tobisch

        Veteran Member



        Posts:1124
        Veteran Member




        2/22/2023 5:02 AM
          Allen,

          no, as far as I know. There is no blocking mechanism for external scripts in DNN.

          Happy DNNing!
          Michael

          Michael Tobisch
          DNN★MVP

          dnnWerk Austria
          DNN Connect





          Will Strohl

          Veteran Member



          Posts:1242
          Veteran Member




          2/22/2023 12:04 PM

            As far as I can remember, DNN has never itself blocked external scripts. But it's a big security concern these days, so the decision to include external scripts must be deliberate, so that they are not blocked by your own web server(s) and/or the client web browser(s). This only means using a CDN in some cases, but others will require implementing configuration-based exceptions, as Michael mentioned.  

            Will Strohl

            Upendo Ventures Was my answer helpful to you? Please... Sponsor Us On GitHub ;)
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