Parse img Image did not find onerror event Stack overflow at Line:0_javascript tips

Prompts Stack overflow at line:0 when opening a Web page. I made a screenshot as follows:

After analysis, found in the Web page is similar to the following code:

Analysis: Pay special attention to onerror, when the picture does not exist, will trigger OnError, and OnError for IMG To specify a nopic.gif picture. That is to say, the picture exists to display pic.gif, the picture does not exist will show nopic.gif. But the problem is, if nopic.gif does not exist, then continue to trigger onerror, resulting in loops, so there are errors.

Description: If the picture exists, but the network is not smooth, it may also trigger onerror.

Solution: the first::. Remove the OnError code, or change the onerror code for other, or make sure the picture in onerror is small enough and exists.

The second type:
<script type= "Text/javascript" >
<!--
function Nofind () {
var img=event.srcelement;
Img.src= ". /.. /.. /sys/common/image/fileoperation/icon/default.gif ";

Img.onerror=null; Control don't keep beating

}
Use event to get a fetch when not found
-->
</script>

<TD align= "center" >${file.name}</td>

The third type:
Use two

<style type= "Text/css" >
Hidden {
Display:none;
}
</style>