diff --git a/Tools/ChangeLog b/Tools/ChangeLog
index d6535e1..2b42630 100644
--- a/Tools/ChangeLog
+++ b/Tools/ChangeLog
@@ -1,3 +1,29 @@
+2019-10-10  Carlos Alberto Lopez Perez  <clopez@igalia.com>
+
+        W3C test importer breaks svg files.
+        https://bugs.webkit.org/show_bug.cgi?id=202806
+
+        Reviewed by Jonathan Bedard.
+
+        The WebKit W3C importer tries to rewrite the xml/html/css files
+        when importing the tests to rewrite paths and such.
+
+        The issue is that to decide if rewrite the file or not uses the
+        mimetype and the current code was comparing for something like
+        if "xml" in str(mimetype[0])
+
+        But svg files have mimetype "image/svg+xml" so the previous code
+        was trying to rewrite svg files, breaking them.
+
+        This patches changes that code to only rewrite if the mimetype
+        also contains the "application/" or "text/" string.
+
+        It also adds an info log (printed when verbose enabled) to tell
+        that a file has been rewritten.
+
+        * Scripts/webkitpy/w3c/test_importer.py:
+        (TestImporter.import_tests):
+
 2019-10-10  Jonathan Bedard  <jbedard@apple.com>
 
         results.webkit.org: Serve correct exit codes when aborting
diff --git a/Tools/Scripts/webkitpy/w3c/test_importer.py b/Tools/Scripts/webkitpy/w3c/test_importer.py
index cf16f3d..051b1bc 100644
--- a/Tools/Scripts/webkitpy/w3c/test_importer.py
+++ b/Tools/Scripts/webkitpy/w3c/test_importer.py
@@ -509,7 +509,9 @@
                 # Only html, xml, or css should be converted
                 # FIXME: Eventually, so should js when support is added for this type of conversion
                 mimetype = mimetypes.guess_type(orig_filepath)
-                if should_rewrite_files and ('html' in str(mimetype[0]) or 'xml' in str(mimetype[0])  or 'css' in str(mimetype[0])):
+                if should_rewrite_files and ('text/' in str(mimetype[0]) or 'application/' in str(mimetype[0])) \
+                                        and ('html' in str(mimetype[0]) or 'xml' in str(mimetype[0])  or 'css' in str(mimetype[0])):
+                    _log.info("Rewriting: %s" % new_filepath)
                     try:
                         converted_file = convert_for_webkit(new_path, filename=orig_filepath, reference_support_info=reference_support_info, host=self.host, convert_test_harness_links=self.should_convert_test_harness_links(subpath), webkit_test_runner_options=self._webkit_test_runner_options(new_filepath))
                     except: