Error log: A potentially dangerous Request.Path value was detected from the client (:).

Hi,

I am getting this error showing on the log quite often, it relates to this CSS entry in jquery-ui-themes:

Full Message:  System.Web.HttpException (0x80004005): A potentially dangerous Request.Path value was detected from the client (:). at System.Web.HttpRequest.ValidateInputIfRequiredByConfig() at System.Web.HttpApplication.PipelineStepManager.ValidateHelper(HttpContext context)

Page URL:  /content/jquery-ui-themes/smoothness/data:image/gif;base64,r0lgodlhaqabaiaaaaaaap/yh5baeaaaaalaaaaaabaaeaaaibraa7

I am getting this alot on the log, should I be concerned, but more importantly, how can I stop it?  Aside from removing that line from the jquery-ui css manually?

Thoughts?

Thank you

Just to add, this is the line in the CSS it is referring to:

.ui-menu .ui-menu-item {
  margin: 0;
  padding: 0;
  width: 100%;
  /* support: IE10, see #8844 */
  list-style-image: url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7);

Just to add, this is for Nop 3.40
If anyone using 3.50 could confirm that they do not see this on their log... it would be greatly appreciated.

Thank you.

I'm having the exact same prob in 3.50. Also awaiting advice.
So - is it solved in 3.60? :P

(And NO, setting commonsettings.log404errors to false as recommended elsewhere doesn't solve the logging of this).

I'm getting same error in 3.5 ?

I have this issue in NOP 3.60

Nop 3.40

Page URL:  /content/jquery-ui-themes/smoothness/data:image/gif;base64,r0lgodlhaqabaiaaaaaaap/yh5baeaaaaalaaaaaabaaeaaaibraa7
The referrer URL.Referrer URL:  /bundles/styles/i_8i3xs-5-sj8p0m2ipixe9wjfd3aeb8fal7n8lsfdw1?v=PPj8P70FMrfbVfOXNO5inLQDZ4q2hRimKmAkdc6umaQ1


Nop logs the same error over and over.

This is caused by jQuery UI.

I have the same issue in 3.80.

Looks like this issue has been occurring for quite some time, and we see it tracks back to the css files.
Does anyone know of a way to stop these errors from cluttering up the error log (and increasing db size) ?