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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Validation in isValidHTTPHeaderValue is too sensitive."
   href="https://bugs.webkit.org/show_bug.cgi?id=147445">147445</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Validation in isValidHTTPHeaderValue is too sensitive.
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>528+ (Nightly build)
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Macintosh
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Major
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>chrism&#64;taopix.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The changes for <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - Tighten XMLHttpRequest setRequestHeader value check"
   href="show_bug.cgi?id=128593">Bug 128593</a> were made to make the validation of the HTTP header tighter as per suggestions RFC 7230.
Looking at the changes made, extra validation has been implement namely classing a single SPACE character as invalid.
RFC 7230 doesn't not specify that this is an invalid value.

I am reporting this since we utilites the ablility to set the &quot;Content-Type&quot; to a space character and these changes have broken our site.</pre>
        </div>
      </p>
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