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Editorial Team
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Asked: 2026-05-18T21:40:18+00:00

I have a QWebView in my app which renders a html page stored in

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I have a QWebView in my app which renders a html page stored in the app as a Qresource. This page, however requires meaty external Javascript libraries such as MathJax, which I would want to include as a resource due to its size.

My problem is that it seems that QtWebkit does not cache these files as a regular browser would do, and every time I refresh the widget it downloads MathJax afresh.

So my question is: is there any way to cache these libraries after first time they are downloaded, without having resorting to shipping it with the app as resource?

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1 Answer

  1. Editorial Team

    You should try if a simple QtNetwork-based download honor the cache setting or not. Also, see if the settings (QWebSettings) are set properly.

    In all case, you should be able to inject a custom QNetworkAccessManager that handles the caching of your custom JS library. See http://ariya.blogspot.com/2010/05/qnetworkaccessmanager-tracenet-speed.html and http://ariya.blogspot.com/2010/06/proxy-server-with-filtering-feature.html as examples and follow it up from there.

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