油脂猴改javascript测试

Question

I'd like to change a test made by a javascript on a website

 <img src="https://img_small.jpg" class="pictures_load" of="true" onclick="var src='https://img_big.jpg'; if(this.readAttribute('of')) src='/noimagehown.gif';

the idea is to remove each javascript test line:

if(this.readAttribute('of')) src='/noimagehown.gif';

so I could see the big image version onclick, I tried it by removing the ligne when inspecting the page code and it worked.

Thanks

Answer 1

Based on what you have provided so far, the intension is to prevent the function of the following onclick .

if(this.readAttribute('of')) src='/noimagehown.gif';

Since above is dependent on this.readAttribute('of') , then the goal can be achieved easily be removing of="true"

Here is an example:
Look for all images with of="true" and remove of attribute

document.querySelectorAll('img[of="true"]').forEach(item => item.removeAttribute('of'));