title: SSRS Reports IE8 ScriptResource.axd compression/decompression error
body: <p>Following on from this question:</p>
  
  <p><a href="https://stackoverflow.com/questions/8939854/ssrs-ie8-javascript-error-invalid-character-scriptresource-axd">SSRS IE8 JavaScript Error Invalid Character ScriptResource.axd</a></p>
  
  <p>This is an issue that I really need a resolution for. I have more information now regarding this and therefore have decided to log a new question.</p>
  
  <p>I have a suite of SSRS reports located on a SQL Server running SQL Server 2008 R2. I have had no issue whatsoever accessing these reports using Internet Explorer for over 6 months.</p>
  
  <p>Last week someone logged a helpdesk call stating that she could not see the reports as the page loads forever and a small icon with an explanation mark appears in the bottom left corner after a few seconds with the text 'Done' next to it.</p>
  
  <p>As I was already aware that this issue was probably an IE problem, I advised the user to download Firefox and just use that instead. Upon doing this the user could see the reports.</p>
  
  <p>The next day I went to access the reports as normal using IE, and the problem the user had encountered, was happening to me. I was stuck in an infinite loop with the small ‘Done’ with errors image in the corner. The error message upon clicking was:</p>
  
  <pre><code>Webpage error details
  
  User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
  Timestamp: Tue, 11 Sep 2012 09:58:13 UTC
  
  
  Message: Invalid character
  Line: 1
  Char: 1
  Code: 0
  URI: http://xxxxx/xxxxxxx/ScriptResource.axd?d=iYyn-VGIBSAJxmoeImLsTtesAMP1500Akt1KNGOHN_b-PEkCEZq1v-qs_SbiV610TRrm-8ISgq4xWAV6lxRrv1NaHOGFuUUOfusDmQgdb8FPNvi0YU9Sc8hp24nzIzpdQXiEtHcT-lcQIUkU_kcJg-EM61o1&amp;t=ffffffffb868b5f4
  
  
  Message: Sys.ScriptLoadFailedException: The script '/Reports/ScriptResource.axd?d=iYyn-VGIBSAJxmoeImLsTtesAMP1500Akt1KNGOHN_b-PEkCEZq1v-qs_SbiV610TRrm-8ISgq4xWAV6lxRrv1NaHOGFuUUOfusDmQgdb8FPNvi0YU9Sc8hp24nzIzpdQXiEtHcT-lcQIUkU_kcJg-EM61o1&amp;t=ffffffffb868b5f4' could not be loaded.
  Line: 5
  Char: 25340
  Code: 0
  URI: http://xxxxx/xxxxxxx/ScriptResource.axd?d=IcCsSJUAEsxazITdzqHjDt1BesfkTp6Mm3HS3LIMBVF2Lxr_e3gi3u2PvZQRuLbGfe0MhIoDqlxXvrXTRXhpV2wfNhWcJK0iLFPtfDZzuej4KzvCBV1ggWWCaLYj6iG0RpVkSYBY-IrbRMKNOCn9Qc8W77bR9CrIphFmFbR2zKerE3DA0&amp;t=ffffffffb868b5f4
  </code></pre>
  
  <p>I checked the IE version number that I was using was version 8.0.6001.18702. I tried getting a colleague to attempt to access the report who was also using version 8.0.6001.18702 IE, and hers went through no problems.</p>
  
  <p>The thing I find strange about this is that for 6 months plus I have no issues, then all of a sudden I cannot use IE to access the reports, and you can’t even say it’s an internet explorer version issue because as I said, my colleague is using the same version as me.</p>
  
  <p>As it works using Firefox it still points towards an IE issue however possibly something Server side?</p>
  
  <p>Can anyone suggest anything here as if it’s a problem for me, this could become a problem for many users over night.</p>
  
  <p>See attached screen shot with what I see when I try to access the report:</p>
  
  <blockquote>
    <p><img src="https://i.stack.imgur.com/WXUHv.png" alt="enter image description here"></p>
  </blockquote>
  
  <p><strong>UPDATE:</strong>
  Research suggests this should fix, have done this and monitored using fiddler however it is still using GZIP compression, and not working for me.</p>
  
  <pre><code>&lt;system.web.extensions&gt;
      &lt;scripting&gt;
        &lt;scriptResourceHandler enableCompression="false" enableCaching="true"/&gt;
      &lt;/scripting&gt;
    &lt;/system.web.extensions&gt;  
  </code></pre>