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Include the content from other webpages (edit)

Revision as of 15:27, 11 February 2019

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Multiple approaches for including the content from other webpages
Multiple approaches for including the content from other webpages or files


= usage =
= Usage =
# seperate the navigation and content into two parts
# seperate the navigation and content into two parts
# compare the content from two webpages
# compare the content from two webpages
== Comparison of iframe and ajax ==
# Load data<ref>[https://stackoverflow.com/questions/382662/what-are-the-differences-between-using-an-iframe-and-ajax-to-include-the-content What are the differences between using an iframe and ajax to include the contents of an external page? - Stack Overflow]</ref>
#* iframe: available
#* ajax: available
# CSS rules were infected from original page called
#* iframe: No
#* ajax: Yes, Need to consider the CSS issue {{exclaim}}
# Callback actions called after loaded the content
#* iframe: Available<ref>[https://stackoverflow.com/questions/164085/javascript-callback-when-iframe-is-finished-loading events - Javascript callback when IFRAME is finished loading? - Stack Overflow]</ref> ''not verified''
#* ajax: Available<ref>[http://api.jquery.com/jquery.ajax/ jQuery.ajax() | jQuery API Documentation]</ref>
== file included was locate on different server ==
<table border="1">
<tr>
  <th>remote website -> origin website</th>
  <th>embed remote image file</th>
  <th>execute javascript file</th>
  <th>ajax call remote json file</th>
</tr>
<tr>
  <td>remote: url start with http not https -> origin: localhost</td>
  <td>ok</td>
  <td>ok</td>
  <td>Error: "... has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource"</td>
</tr>
<tr>
  <td>remote: url start with https -> origin: localhost</td>
  <td>ok</td>
  <td>ok</td>
  <td>Error: "... has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource"</td>
</tr>
<tr>
  <td>remote: url start with http -> origin: https</td>
  <td>ok</td>
  <td>Error: "Mixed Content: The page at 'https://website' was loaded over HTTPS, but requested an insecure script 'http://remote_website/file.js'. This request has been blocked; the content must be served over HTTPS.
"</td>
  <td>Error: "... has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource"</td>
</tr>
<tr>
  <td>remote: url start with https -> origin: http</td>
  <td>ok</td>
  <td>ok</td>
  <td>Error: "... has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource"</td>
</tr>
</table>
error message
<pre>
Access to XMLHttpRequest at 'http://remote.website/test.json' from origin 'http://local.website' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
jquery-3.3.1.min.js:2 Cross-Origin Read Blocking (CORB) blocked cross-origin response http://remote.website/test.json with MIME type application/json. See https://www.chromestatus.com/feature/5629709824032768 for more details.
Mixed Content: The page at 'https://local.website/test.php' was loaded over HTTPS, but requested an insecure script 'http://remote.website/test.js'. This request has been blocked; the content must be served over HTTPS.
</pre>


= client-side approach =
= client-side approach =
== Frame or iframe ==
== Frame or iframe ==
* frame or [http://www.w3.org/TR/html401/present/frames.html#h-16.5 iframe tag], [http://www.w3.org/TR/html4/struct/objects.html#h-13.5 object tag]
frame or [http://www.w3.org/TR/html401/present/frames.html#h-16.5 iframe tag]
** 缺點是瀏覽器上的鏈結，非該篇網頁的靜態鏈結。
* 缺點是瀏覽器上的鏈結，非該篇網頁的靜態鏈結。
** 額外需要處理的議題：(1)點選連結，內容會直接顯示在 frame 內，如果 frame 太小，會需要額外處理。例如：frame內的連結，以新視窗開啟。(2)[http://webdesign.about.com/od/iframes/a/iframes-and-css.htm Iframes and CSS - Styling Iframes With CSS]
* 額外需要處理的議題：(1)點選連結，內容會直接顯示在 frame 內，如果 frame 太小，會需要額外處理。例如：frame內的連結，以新視窗開啟。(2)[http://webdesign.about.com/od/iframes/a/iframes-and-css.htm Iframes and CSS - Styling Iframes With CSS]
** cross frame layers
* cross frame layers
 
[https://www.w3schools.com/tags/tag_object.asp HTML object tag][http://www.w3.org/TR/html4/struct/objects.html#h-13.5]
* code: {{kbd | key=<nowiki><object width="400" height="400" data="path/to/plain_text.txt"></object></nowiki>}}


== Javascript ==
== Javascript ==
Line 58: Line 119:
* Boutell.Com, Inc. (2007). [http://www.boutell.com/newfaq/creating/include.html How Do I Include One HTML File in Another?] / Jennifer Kyrnin (n.d.). [http://webdesign.about.com/od/ssi/a/aa052002a.htm]
* Boutell.Com, Inc. (2007). [http://www.boutell.com/newfaq/creating/include.html How Do I Include One HTML File in Another?] / Jennifer Kyrnin (n.d.). [http://webdesign.about.com/od/ssi/a/aa052002a.htm]
* [http://stackoverflow.com/questions/676394/how-to-include-an-html-page-into-an-html-page How to include an html page into an html page]
* [http://stackoverflow.com/questions/676394/how-to-include-an-html-page-into-an-html-page How to include an html page into an html page]
* [https://developer.mozilla.org/zh-TW/docs/Web/HTTP/CORS 跨來源資源共用（CORS） | MDN]
* [https://stackoverflow.com/questions/7564832/how-to-bypass-access-control-allow-origin php - how to bypass Access-Control-Allow-Origin? - Stack Overflow]
References
<references />


[[Category:Web_Dev]] [[Category:Wiki]]
[[Category:Programming]] [[Category:Web_Dev]] [[Category:Wiki]]
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