Hi! This is a victorious and quick post I have to make. (: And here is why. It took me two days of debugging and googling to find out the cause of a freaking problem: browser kept up sending same request for one of the pages of a Grails app I am working on now. The reason is an empty ‘src’ attribute of an <img> element (actually, it can be any element referring to loaded resource like a .js or .css file or any media content). You can read more about the problem itself here: Empty image src can destroy your site. I myself would probably never face this problem if didn’t have captcha (generated for each request to the problematic URL) and an optional image.
And here’s the solution:
1) in server code
(in Grails terms meaning: don’t render the ‘src’ attribute if the url is empty)
2) in client (javascript) code:
So first, never ever leave your ‘src’ attribute empty! And second, never ever set ‘src’ value to empty string programatically or by any other means. Third, it’s ok to do this when it’s officially fixed either html5 is fully supported by all major browsers (hopefully).
Have a good one!
