CODEWITHSUNDEEP
flashzeroclipboard
Tukuna
Tukuna

Reputation: 457

ZeroClipboard JavaScript library throws Uncaught Error: Error calling method on NPObject

I am trying to copy content to clipboard using https://github.com/zeroclipboard/ZeroClipboard. It seems a good library, but I am getting the error 'Error calling method on NPObject.' when the copy button (a flash) is hovered.

Seems like a flash security problem, but I am able to load the flash content.

Any ideas?

Upvotes: 3

Views: 1935

Answers (6)

gvgvgvijayan
gvgvgvijayan

Reputation: 2506

Or else your domain is not ssl secured i.e your protocol is http instead of https so you should alter your swf link from

https://davidwalsh.name/demo/ZeroClipboard.swf

To

http://davidwalsh.name/demo/ZeroClipboard.swf

For further details please check Cross-Protocol Limitations topic in the following documentation

http://www.kellyjandrews.com/zc/guides/limitations/protocol/

Upvotes: 0

zyhack
zyhack

Reputation: 46

Please add "trustedDomains : [*]"

Tha't how I fixed my problem.

var clip = new ZeroClipboard(document.getElementById("copy-button"), {
    trustedDomains: [ "*" ],
    moviePath: "http://assets.dev.alipay.net/gallery/zeroclipboard/1.2.2/ZeroClipboard.swf"
});

For more details: https://github.com/zeroclipboard/zeroclipboard/issues/103

Upvotes: 1

BenL3au
BenL3au

Reputation: 41

In versions after 1.1.7, if you hosted "ZeroClipboard.swf" on a different domain than the hosting page, you need to set "allowScriptAccess" to "always" other than "sameDomain", also "trustedDomains" should contain current page domain.

ZeroClipboard.setDefaults( { moviePath:'http://YOURSERVER/path/ZeroClipboard.swf',allowScriptAccess: "always",trustedDomains: location.hostname } );

Upvotes: 4

Geoffrey Booth
Geoffrey Booth

Reputation: 7366

In case this helps anyone else, I managed to make this error go away for my setup (developing locally at http://localhost:3000 and loading the Flash file from cdnjs. CoffeeScript:

if ZeroClipboard?
    ZeroClipboard.setDefaults
        moviePath: "//cdnjs.cloudflare.com/ajax/libs/zeroclipboard/1.1.7/ZeroClipboard.swf"
        trustedOrigins: [window.location.protocol + "//" + window.location.host]
        trustedDomains: window.location.hostname
        allowScriptAccess: "always"

Note that trustedDomains is the key here. Even though it's supposedly deprecated in 1.1.7, removing it (for me at least) causes the dreaded Error calling method on NPObject error to return.

Upvotes: 0

Tukuna
Tukuna

Reputation: 457

I got it work. It was a same origin security model breech. My web apps subdomain was 'WWW' but the flash content was served from 'CDN'. Just rendered both the contents from same subdomain.

Find more @ https://developer.mozilla.org/en-US/docs/Gecko_Plugin_API_Reference/Scripting_plugins?redirectlocale=en-US&redirectslug=Gecko_Plugin_API_Reference%3AScripting_plugins#NPObject

Thanks.

Upvotes: 2

Seth McClaine
Seth McClaine

Reputation: 10040

I just updated from 1.0.7 to 1.1.7 yesterday and I'm experiencing the same issue... I'm wondering if they broke something with a commit they did yesterday because this is the only post I've seen about the issue.

~Seth

Upvotes: 0

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