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--- en:webzone [2021/08/25 10:29]
127.0.0.1 external edit
+++ en:webzone [2023/06/22 14:30] (current)
admin [Web Zone prerequisites]
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 ====== Web Zone prerequisites ======
 ===== Introduction =====
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 **  - The site i integrated in a page is not displayed, neither in the zebrix interface nor on the screens**
-Some sites forbid to be integrated into another site. This option is set by the webmaster or network administrator of the website you are trying to integrate.
+Some sites forbid to be integrated into another site. This option is usualy set by the developer or administrator of the website you are trying to integrate.
+It is actualy a common recommanded setting for security reason.
-This prohibition is defined by the HTTP header (header) "X-Frame-Options: SAMEORIGIN" sent by the web server.
+This prohibition is defined by an http header set by the web server and taken into account by your web browser (and the integrated one into the display).
-It is not possible to embed in a web area a web page that is blocked by this option unless you can edit / change this setting.
+One of these two following headers (or both) could prevent the web content to be displayed in the page editor or on the screen:
+There are different options, such as "SAMEORIGIN" which only allows iFrames from the same domain, and "DENY" which completely blocks iFrames.
+  - "X-Frame-Options" (considered as deprecated my most recent web browsers)
+  - "Content-Security-Policy"
 {{public_media:x-frame-options-sameorigin.png?nolink|}}
+In the example above, the X-Frame-Options only allow website having the same domain (same origin) to embed it. As zebrix is considered as a different website (other domain name), the zebrix domain name has to be added in a whitelist.
+Here is how the **X-Frame-Options** header can be set :
+<code>X-Frame-Options: Allow-From *.zebrix.net;</code>
+Here is how the **Content-Security-Policy** header needs to be adjusted:
+<code>Content-Security-Policy: frame-ancestors 'self' *.zebrix.net;</code>
 **  - The site I want to embed in my page displays ads or messages in the foreground, how can we make them disappear ?**
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 But for some cases, if you're using a NUC, the firmware version could be the cause, is so, please contact our support : support.ds@manganelli.com
+** - The site I embedded in a page does not display or displays badly on the screens **
+Sandboxes are browser features that allow you to restrict the actions that can be performed by the content of an iFrame.
+This can include restricting scripts, forms, etc.
+There is an option in the hardware tools to disable sandboxing on screens.
+Warning! The SandBox of an iframe is a security feature that prevents external content from running on the screen.
+We strongly advise against disabling the SandBox of an iframe, unless your situation requires it and you understand the risks involved.