</tr>
</table>
- Example: `%URLPARAM{"skin"}%` returns `print` for a `.../view/%WEB%/%INCLUDINGTOPIC%?skin=print` URL
-- **_%X% Note:_** URL parameters passed into HTML form fields must be entity [[ENCODEd|Main/VarENCODE]].
-- **_%X% Note:_** Double quotes in URL parameters must be escaped when passed into other TWiki variables.%BR% Example: `%SEARCH{ "%URLPARAM{ "search" encode="quotes" }%" noheader="on" }%`
-- **_%X% Note:_** When used in a template topic, this variable will be expanded when the template is used to create a new topic. See [[TWikiTemplates#TemplateTopicsVars]] for details.
-- **_%X% Note:_** There is a risk that this variable could be misused for cross-site scripting.
+- **_%X% Notes:_**
+ - URL parameters passed into HTML form fields must be entity [[ENCODEd|Main/VarENCODE]].
+ - Double quotes in URL parameters must be escaped when passed into other TWiki variables.%BR% Example: `%SEARCH{ "%URLPARAM{ "search" encode="quotes" }%" noheader="on" }%`
+ - When used in a template topic, this variable will be expanded when the template is used to create a new topic. See [[TWikiTemplates#TemplateTopicsVars]] for details.
+ - Watch out for TWiki internal parameters, such as `rev`, `skin`, `template`, `topic`, `web`; they have a special meaning in TWiki. Common parameters and view script specific parameters are documented at [[TWikiScripts]].
+ - If you have `%URLPARAM{` in the value of a URL parameter, it will be modified to `%<nop>URLPARAM{`. This is to prevent an infinite loop during expansion.
+ - There is a risk that this variable could be misused for cross-site scripting.
- Related: [[ENCODE|Main/VarENCODE]], [[SEARCH|Main/VarSEARCH]], [[FormattedSearch]], [[QUERYSTRING|Main/VarQUERYSTRING]]
-
-**_Note_** If you have `%URLPARAM{` in the value of a URL parameter, it will be modified to `%<nop>URLPARAM{`. This is to prevent an infinite loop during expansion.
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