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POSafari Mobile (Ipad) doesn't seem to cache my telerik and Microsoft CDN resource files used by my aspx page
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copied!<p>I have an aspx web page with various Telerik RadControls on it and each time this page is loaded, Safari mobile seems to download all the resource files again - for example the following files are downloaded on each page request to an ipad - nothing seems to get cached as it would be on other non-mobile browsers.</p> <pre><code>http://aspnet-scripts.telerikstatic.com/ajaxz/2010.3.1109/Common/Navigation/NavigationScripts.js http://aspnet-scripts.telerikstatic.com/ajaxz/2010.3.1109/PanelBar/RadPanelBarScripts.js http://aspnet-scripts.telerikstatic.com/ajaxz/2010.3.1109/Input/TextBox/RadInputScript.js http://aspnet-scripts.telerikstatic.com/ajaxz/2010.3.1109/ListBox/RadListBoxScripts.js http://aspnet-scripts.telerikstatic.com/ajaxz/2010.3.1109/ComboBox/RadComboBoxScripts.js http://aspnet-scripts.telerikstatic.com/ajaxz/2010.3.1109/Grid/RadGridScripts.js </code></pre> <p>This is over 100K of javascript being passed down each time even though the CDN resources are set to cache and have ETAGS.</p> <p>I've rigged up fiddler to both the ipad and a laptop running IE/FF/Safari each time the laptop browser is caching the resource files above and the ipad isn't.</p> <p>I think this is why my app performs notably slower on the Ipad although it may be the slow javascipt parsing on the Ipad as well...</p> <p>Has anyone else had this problem? Am i missing something obvious here? </p> <p>Thanks.</p> <p>EDIT</p> <p>I am monitoring the iPad traffic on the laptop by making the laptop an http proxy for the iPad.</p> <p><strong>Extra Info from fiddler:</strong></p> <p>Fiddler v2.3.0.0, laptop results from IE8, iPad vers. 3.2.2. </p> <p>From my laptop, If I go to <a href="http://demos.telerik.com/aspnet-ajax/listbox/examples/default/defaultcs.aspx" rel="nofollow">http://demos.telerik.com/aspnet-ajax/listbox/examples/default/defaultcs.aspx</a></p> <p>and after click "First Look" a few times the following in in fiddler:</p> <pre><code># Result Protocol Host URL Body Caching Content-Type Process Comments Custom 1 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 54,608 private text/html; charset=utf-8 iexplore:6172 2 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 iexplore:6172 4 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 54,608 private text/html; charset=utf-8 iexplore:6172 5 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 iexplore:6172 7 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 54,608 private text/html; charset=utf-8 iexplore:6172 8 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 iexplore:6172 10 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 54,608 private text/html; charset=utf-8 iexplore:6172 11 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 iexplore:6172 </code></pre> <p>If I do the same on my iPad the following is recorded by fiddler:</p> <pre><code># Result Protocol Host URL Body Caching Content-Type Process Comments Custom 1 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 54,380 private text/html; charset=utf-8 2 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/Common/Navigation/NavigationScripts.js 7,856 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 3 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ComboBox/RadComboBoxScripts.js 16,238 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 4 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/Ajax/Ajax.js 7,509 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 5 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ToolBar/RadToolBarScripts.js 13,372 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 6 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 8 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 54,380 private text/html; charset=utf-8 9 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/Common/Navigation/NavigationScripts.js 7,856 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 10 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ComboBox/RadComboBoxScripts.js 16,238 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 11 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ListBox/RadListBoxScripts.js 13,199 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 12 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 13 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ToolBar/RadToolBarScripts.js 13,372 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 15 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 54,380 private text/html; charset=utf-8 16 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/Common/Navigation/NavigationScripts.js 7,856 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 17 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ComboBox/RadComboBoxScripts.js 16,238 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 18 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ToolBar/RadToolBarScripts.js 13,372 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 19 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/ListBox/RadListBoxScripts.js 13,199 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 20 200 HTTP aspnet-scripts.telerikstatic.com /ajaxz/2010.3.1317/Ajax/Ajax.js 7,509 public, max-age=31536000 Expires: Sun, 17 Jan 2021 15:05:25 GMT application/x-javascript 21 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 </code></pre> <p>EDIT 2:</p> <p>I have tried exactly the same test as above again today and noticed that:</p> <p>1) The IPad <strong>is now</strong> caching the javascript</p> <p>2) Telerik demos <strong>are not using the CDN</strong> but they were yesterday! (see results below compared to results above)</p> <pre><code># Result Protocol Host URL Body Caching Content-Type Process Comments Custom 1 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 53,036 private text/html; charset=utf-8 2 200 HTTP demos.telerik.com /aspnet-ajax/Telerik.Web.UI.WebResource.axd?compress=1&_TSM_CombinedScripts_=%3b%3bTelerik.Web.UI%2c+Version%3d2010.3.1317.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3a9506cff2-3a86-46c5-b869-6ba1478f3c27%3a1c2121e%3ae8945d51%3af4636213%3ac531f12c%3a4d471440%3af7131199%3ac17ca3a3 10,599 public, max-age=31533429 Expires: Sat, 18 Feb 2012 10:06:39 GMT text/css 3 200 HTTP demos.telerik.com /aspnet-ajax/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=RadScriptManager1_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a8f393b2b-3315-402f-b504-cd6d2db001f6%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%3aen-US%3a9506cff2-3a86-46c5-b869-6ba1478f3c27%3a16e4e7cd%3af7645509%3a24ee1bba%3af46195d3%3a1e771326%3aaa288e2d%3a628ebdd0%3a9cdfc6e7%3aed16cbdc%3a2bef5fcc%3aa7e79140 160,387 public, max-age=31533429 Expires: Sat, 18 Feb 2012 10:06:40 GMT application/x-javascript 4 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 10 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 53,032 private text/html; charset=utf-8 11 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 14 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 53,032 private text/html; charset=utf-8 15 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 18 200 HTTP demos.telerik.com /aspnet-ajax/listbox/examples/default/defaultcs.aspx 53,032 private text/html; charset=utf-8 19 200 HTTP demos.telerik.com /aspnet-ajax/Common/CodeViewer.js.aspx 5,534 private text/javascript; charset=utf-8 </code></pre>

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