CODEWITHSUNDEEP
javascripthtmlgetimagedatadomexception
flerngobot
flerngobot

Reputation: 666

getImageData causes "Uncaught Error: NOT_SUPPORTED_ERR: DOM Exception 9"

I'm trying to get a feel for some image manipulation in HTML5. I am finding that when I try and use the getImageData method I get this JS exception thrown. I am using Chrome and running on localhost.

Thanks!

Upvotes: 4

Views: 9261

Answers (2)

specman
specman

Reputation: 431

It could be an issue with editing files on your local system using Chrome. You can close Chrome and reopen it using flags --allow-file-access-from-files to allow local file editing.

Came across this post when I ran into a similar issue and it helped.

Upvotes: 0

flerngobot
flerngobot

Reputation: 666

Okay figured out what the problem was. All I have to say is "derp". I was using 

getImageData(x, x)

but the way I was intending to use this requires 4 arguments

getImageData(x,x,x,x)

Upvotes: 9

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