browser cache issue SAP UI5

[Former Member]

Hi ,

        I have developed a SAP UI5 application and moved it to the production server. subsequent to that i have made some changes  to the code in development server and moved it to production server. But when we access SAP UI5 application from the browsers the new code is not getting updated in the application. To make this work every time i need to clear the browser cache manually. Even after running the report " " we need to clear cache in the browser manually.

In the application index we are using this code

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<META HTTP-EQUIV="Pragma" CONTENT="no-cache">

<meta http-equiv="cache-control" content="no-cache" />

<META HTTP-EQUIV="Expires" CONTENT="-1">

<script

   src="resources/sap-ui-core-all.js"

   id="sap-ui-bootstrap"

   data-sap-ui-libs="sap.m, sap.ui.commons,  sap.suite.ui.commons, sap.ui.table, sap.ui.ux3,sap.viz"

   data-sap-ui-theme="sap_bluecrystal"

    data-sap-ui-appCacheBuster="./"  >

</script>

Please suggest how make the new code getting reflected in the browser without clearing the browser cache manually.

Thanks & Regards,

Jayasree.

[jmoors · Accepted solution]

For a production solution you should look at the cache buster mechanism.

The mechanism changes the URL to prevent browser caching issues.

Cache Buster - UI Frameworks based on HTML5, JavaScript and CSS - SAP Library

Application Cache Buster - UI Frameworks based on HTML5, JavaScript and CSS - SAP Library

Regards,

Jason

[pinakipatra · Accepted solution]

Correct but for practice or exploring purpose browsers incognito mode

can be used ??

[jmoors · Accepted solution]

Clearing/disabling caching is fine for testing, however Jayasree mentioned deploying to production, where you can't rely on user clearing their cache.

Regards,

Jason

[Former Member]

Hi,

This problem occurs in Microsoft Internet Explorer. However, in case of MS Explorer 10, the problem can be sorted out in the following way -

Go to Settings --> General --> Browsing History --> Settings

and please select the following option -

Check for the newer versions of the stored webpages -

• Every time I visit the webpage

This will work and every time it will give refreshed version of the webpage only.

Regards,

Subhabaha Pal

[Former Member]

Hello ,

In web.xml do following changes:

inside :

<!-- ============================================================== -->

  <!-- UI5 resource servlet used to handle application resources      -->

  <!-- ============================================================== -->

<context-param>

Add:

  <param-name>com.sap.ui5.resource.DEV_MODE</param-name>

  <param-value>true</param-value>

  </context-param>

-Kind Regards

Ajay Nayak

[jmoors]

Again, this is ok for development, however the question related to production where you shouldn't enable the dev mode.

Regards,

Jason

[Former Member]

Right then also include the code :

<!-- ============================================================== -->

<!-- AppCacheBuster Filter                                          -->

<!-- ============================================================== -->

<filter>

     <display-name>AppCacheBusterFilter</display-name>

      <filter-name>AppCacheBusterFilter</filter-name>

      <filter-class>com.sap.ui5.resource.AppCacheBusterFilter</filter-class>

</filter>

<filter-mapping>

      <filter-name>AppCacheBusterFilter</filter-name>

      <url-pattern>/*</url-pattern>

</filter-mapping>

-Ajay

[jmoors]

That's what I recommended above, obviously will be different if you are not using a Java stack.

Regards,

Jason

[pinakipatra]

Hi

you can do what Kai has said or

you can switch to in-cognito(Ctrl+Shift+N) mode if you are using chrome.

In this mode  browser will never cache.

[kai2015]

if your code does not work, disable the browser cache.

In chrome => F12 => Network => Disable cache.

As developer I never use caching in my browser.