Img's onerror method is located in Firefox, imgonerror Firefox

Img's onerror method is located in Firefox, imgonerror Firefox

The following page is not displayed when it is opened in Firefox.

However, the following page is displayed in chrome:

But change $ ('# headLogo'). attr ('src', ")

 $('#headLogo').attr('src' ,'a');

In Firefox, The onerror method is executed. You can check the Firefox console information:

Conclusion: In Firefox, setting the src of an image as a Null String does not trigger the onerror method.