Lieray DXP 7.4 + Azure Cloud Front CDN https://liferay.dev/en/c/message_boards/find_thread?p_l_id=119785294&threadId=123219399 2026-04-07T22:15:21Z 2026-04-07T22:15:21Z Sergio Sanchez https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123265971 2025-02-25T14:31:32Z 2025-02-25T14:31:31Z

<p>I set up the configuration to be public and TTL of 3600 seconds and when I request the file with its URL, I can see the expected headers.</p> <p>Inspecting with Developer Tools, I can see</p> <p>cache-control:public, max-age=3600<br>  </p>

Sergio Sanchez 2025-02-25T14:31:31Z Elena Muñoz https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123257255 2025-02-21T21:27:59Z 2025-02-21T16:56:04Z

<p>Hi, </p> <p>Thanks for the ideas.. here some pics:</p> <p>Here headers from local lfieray portal:</p> <p> <a href="https://ibb.co/GfbJ04Cw">Headers_Local</a></p> <p>Here from the CDN:</p> <p> <a href="https://ibb.co/wrRZ5MV8">Headers_CDN</a></p> <p>And yes, they are world readable.</p> <p>Thanks a lot for any clue...</p> <p>Michael.</p>

Elena Muñoz 2025-02-21T16:56:04Z Elena Muñoz https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123254108 2025-02-21T19:09:40Z 2025-02-19T17:48:01Z

<p>Hi Sergio,</p> <p>We apply the indicated configuration but the operation remains the same.</p> <p>​​​​​​​</p> <p>Any suggestions?</p>

Elena Muñoz 2025-02-19T17:48:01Z Sergio Sanchez https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123251203 2025-02-17T18:01:31Z 2025-02-17T18:01:31Z

<p>Hello Elena, did you apply the configuration I suggested?</p> <p>Any changes?</p>

Sergio Sanchez 2025-02-17T18:01:31Z Elena Muñoz https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123246712 2025-02-17T16:55:46Z 2025-02-14T22:15:58Z

<p>Hi Sergio</p> <p>Currently, the pdfs are already being cached on the CDN... but when you hit download or preview the files,... they are always downloaded from the Liferay portal and not from the CDN. Please ask if anything else needs to be done for Liferay to send it to the CDN and not “provide it itself”.</p> <p>Regards,</p>

Elena Muñoz 2025-02-14T22:15:58Z Sergio Sanchez https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123241793 2025-02-12T11:37:02Z 2025-02-12T11:37:01Z

<p>You can include the Cache-Control headers for requests to /documents</p> <p>You can do it though Instance Settings &gt; Documents and Media &gt; Cache Control</p> <p> <b id="docs-internal-guid-4bc087cf-7fff-9413-8fdc-8a4c4185b63b"> <img alt="" src="https://lh7-rt.googleusercontent.com/slidesz/AGV_vUf5d8RyIXXWLhzAi8WkzOCQWqbQR1P0on_cmD8JSMB_0aGmDwyv6HeoV6xXREmFCqfd-wnWi81DyFgK5gxTZrLdX7HpVMwry_ANjAfwBWiRJOeoObVjCI8pvEmxFEZ2FNa9LjbzQw=s2048?key=KRT7WYUCxR4woOhYUvc9D_Yj"> </b> </p>

Sergio Sanchez 2025-02-12T11:37:01Z Olaf Kock https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123241568 2025-02-12T09:20:15Z 2025-02-12T09:20:15Z

<p>Try these:</p> <p>Access the PDF in question, bypassing the CDN (e.g. directly from the Liferay server) and note the HTTP-Headers that are delivered. These might block the CDN from caching.</p> <p>Check if the CDN has some explicit configuration options that might black- or white-list some of the URLs for either documents or previews. Especially in larger environments, we sometimes see one admin configuring &quot;as far as they can observe&quot;, only for another one (e.g. you) to later figure out that this was not enough.</p> <p>Also, check the configured host names: If the request for the preview bypasses the CDN because it uses a host name that is not handled by the CDN, you can either change that on the Liferay side, or also map that host name in the CDN. (Variations with and without &quot;www&quot; are good candidates, now that browsers effectively hide the actual host name they're requesting)</p>

Olaf Kock 2025-02-12T09:20:15Z Elena Muñoz https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123239912 2025-02-12T09:10:07Z 2025-02-11T21:12:06Z

<p>Hi Olaf,</p> <p>Yes, they are. But it does not work.... i works (cach) for everything  but for PDF files from the document library.  When you download or preview a document this will always come from the portal itself not the CDN....</p> <p> </p> <p>Any clue?</p> <p>Regards,</p> <p> </p> <p> </p>

Elena Muñoz 2025-02-11T21:12:06Z Olaf Kock https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123236350 2025-02-10T16:05:42Z 2025-02-10T16:05:41Z

<p>Are they world-readable, or under access control? If they're not world-readable, this would prevent CDN use on them.</p>

Olaf Kock 2025-02-10T16:05:41Z Elena Muñoz https://liferay.dev/en/c/message_boards/find_message?p_l_id=119785294&messageId=123219398 2025-02-04T16:07:34Z 2025-02-01T04:09:30Z

<p>Hi,</p> <p>We currently have Liferay integrated with CDN and CSS, JS are being served from the CDN without issues. However my main conern are the files (PDF files from Document Library) I would like that those files were downloaded or loaded (while preview) from the CDN but is not happening; they always are downloaded from the Portal itself  (not CDN).</p> <p>Please, any idea would be great, as i do not know how to change that behaviour. Basically: How do i set Liferay to load PDF files from the CDN.</p> <p>Thanks in advance.</p> <p> </p> <p> </p>

Elena Muñoz 2025-02-01T04:09:30Z