[Building Sakai] Loading PDFs in Chrome

[Sam Ottenhoff]

>
>
> I know it's an easy support call (telling them to re-fresh the page,
> but to my mind it's better to have the browser not cache them and to
> implement support for Last-Modified/ETag headers and HTTP 304
> responses so that the browser can accurately check and then telling
> the browser to re-validate each time (but this is more work).


I added the Last-Modified and If-Modified-Since check in trunk:

  https://jira.sakaiproject.org/browse/KNL-1316

Testing would be appreciated!
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