IE not caching image files from KRPANO

  • First, great virtual tour solution. Love the product.

    Second, I've been trying to rundown a caching issue with IE vs Chrome. IE seems to add "Cache-Control: no-cache" as one of the request headers when looking for KRPANO background images. Other files (css, js, xml, even vtourskin.png) are cached. In Chrome, all the files are cached and it doesn't send a no-cache header.

    The issue is similar to what was reported at https://krpano.com/forum/wbb/inde…ad&postID=62550, but I didn't want to respond and dredge up an old thread.

    Here's an example:
    Directly to aws s3 bucket: http://s3.tours.atlasbayvr.com/website/img_999peachtree/
    Served through cloundfront: https://tours.atlasbayvr.com/website/img_999peachtree/

    Is there something causing IE to think it can't cache the images? I'm assuming the code is hidden in tour.js so I can't find out myself.

    Thanks,
    Cameron

  • This post is 3 years old but no answer.
    I just posted a new request for advice as the problem is perhaps even worse today·

    Chrome especially has the problem.

    I also just included the Meta tag with Cachecontrol but have not seen any effect.

    Even worse is that all browsers are hiding the Delete Cache options into various preference areas.
    Chrome has moved it into the Security options which is not where I would have looked.

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