85562 2012-05-03 17:48:12 -0700 [Qt] Webkit does not honor html cache-control metatags 2015-03-16 06:17:31 -0700 1 1 1 Unclassified WebKit WebKit Qt 528+ (Nightly build) All All RESOLVED INVALID http://jsbin.com/obilez Qt, QtTriaged P3 Normal --- 0 kamaji webkit-unassigned hausmann laszlo.gombos maheshk rob.stryker vestbo zalan oldest_to_newest 615839 0 kamaji 2012-05-03 17:48:12 -0700 Qt Webkit does not honor html cache-control metatags: <META http-equiv="Cache-control" content="no-cache"> <META http-equiv="Pragma" content="no-cache"> <META http-equiv="Expires" content="-1"> These tags are ignored when creating http cache. Below are some steps for reproducing this on Linux. 1. Clear any existing QtTestBrowser cache by removing the following directory: rm ~/.cache/Nokia/QtTestBrowser 2. Start QtTestBrowser (Tools/Scripts/run-launcher --qt) 3. Tick the Use Disk Cache option in the Settings menu. 4. Enter the following URL in the url bar and hit enter: http://jsbin.com/obilez or take the attached html content, stick it on a webserver, and point QtTestBrowser at that. 5. Run the following command to show that the content was cached ("Binary file <x> matches"), despite directives that instruct the browser not to cache: find ~/.cache/Nokia/QtTestBrowser/data7 | xargs grep '<META http-equiv="Cache-control" content="no-cache">' 615886 1 laszlo.gombos 2012-05-03 18:52:47 -0700 This is an issue with WebKit2 as well, it was just easier to reproduce with QtTestBrowser. 615973 2 hausmann 2012-05-03 22:59:14 -0700 Is this really a WebKit bug or perhaps a bug in the Qt Network Disk Cache implementation? 615984 3 zalan 2012-05-03 23:18:12 -0700 (In reply to comment #2) > Is this really a WebKit bug or perhaps a bug in the Qt Network Disk Cache implementation? This is a webkit bug. It lacks cache-control meta tags support from the beginning and surprisingly webkit based browsers get away with this. https://lists.webkit.org/pipermail/webkit-dev/2007-November/002717.html 975446 4 jturcotte 2014-02-03 03:20:45 -0800 === Bulk closing of Qt bugs === If you believe that this bug report is still relevant for a non-Qt port of webkit.org, please re-open it and remove [Qt] from the summary. If you believe that this is still an important QtWebKit bug, please fill a new report at https://bugreports.qt-project.org and add a link to this issue. See http://qt-project.org/wiki/ReportingBugsInQt for additional guidelines. 1077392 5 rob.stryker 2015-03-16 06:17:31 -0700 This bug should be re-opened. It is not a qt bug but a webkit bug in general. There are many other implementations and examples where webkit is not respecting cache-control flags, either from HTML or from specific headers passed in. Please re-open this bug. I am unable to re-open it.