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cpcent
cpcent
Known Participant
June 18, 2018
Answered

Preview images don't display in closed proxy environment

  • June 18, 2018
  • 9 replies
  • 1326 views

Hello there,

I have a user that is unable to see images located on an external server in Dreamweaver's preview mode. The user's computer is located in a closed proxy environment where all external traffic must go through an proxy server. For this particular user, essentially all HTTP/HTTPS traffic to the internet is allowed at the proxy level, however all HTTP/HTTPS traffic that does not go through the proxy is blocked at the firewall. Looking at the proxy server logs, I don't see anything unusual (i.e. filtered URL's). So I am thinking that maybe Dreamweaver is trying to pull the external images without going through the proxy? Or maybe a protocol apart from HTTP/HTTPS is being used to pull the images? Can anybody shed some light on what is happening here?

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    Correct answer Nancy OShea

    Yes, the proxy is the issue. Images in preview mode are displayed just fine in the following scenarios:

    1) When the PC is configured to NOT using the proxy and the firewall is opened to allow HTTP/HTTPS traffic to the internet.

    2) When the PC is configured to use the proxy, but the firewall is still left open to allow HTTP/HTTPS traffic to the internet.

    Where things run afoul is when the PC is configured to used the proxy and the firewall is configured to NOT allow HTTP/HTTPS traffic to the internet (i.e. a closed proxy environment).

    Is there any solution to this problem--that is, to allow images located on a remote server (referenced via full URL path to image location) to be displayed in the Dreamweaver preview mode when working in a closed proxy environment?


    If you want images without  internet, you must reference images located in your local site folder which is recommended anyway.   I sometimes work offline and have no trouble seeing local images.

    When your work is done,  use Find & Replace to change local images to absolute pathson the server --  https:// yoursite . com /images / image1.jpg and so on.... 

    9 replies

    WolfShade
    WolfShade
    Legend
    June 18, 2018

    I'm not trying to be trite, or a jerk, but the obvious resolution is to not use preview mode.  DW tries to do well as far as previewing content/layout, but the truth of the matter is that DW is _not_ a browser, not for desktop, not for tablet, not for mobile.

    The best way to "preview" a site/app is to use an actual browser.  Not just one, either.  I test/preview in IE, Edge, FF, and Chrome.

    V/r,

    ^ _ ^

    cpcent
    cpcentAuthor
    Known Participant
    June 18, 2018

    I thank you kindly for your suggestion--which does make sense--but it does not really answer the question. One should be able to use the preview mode behind a proxy server. If one can't, then that is a bug.

    By the way, I know nothing about Dreamweaver. I asked the user if there was any way to configure a proxy setting within Dreamweaver (I think that it is a cloud version). She said that she couldn't find a way. I also did an internet search and it wasn't clear to me whether a proxy setting could be configured or not. If there is a way to simply configure a proxy setting somewhere within Dreamweaver then that is probably the solution. If not then...?

    Nancy OShea
    Community Expert
    Nancy OSheaCommunity Expert
    Community Expert
    June 19, 2018

    To clarify terms a bit.  Are you asking about Real-Time Preview which goes through Adobe's servers?  Or Preview in local browser? 

    Right-click open document tab and select Open in Browser.  See screenshot.

    Nancy O'Shea— Product User & Community Expert
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