iframe
v1.0.0
Published
higher level api for creating and using iframes in browsers
Downloads
2,271
Readme
iframe
higher level api for creating and removing iframes in browsers
usage
use with browserify
npm install iframevar iframe = require('iframe')
// creates a new iframe and appends it to the container
frame = iframe({ container: document.querySelector('#container') , body: "hi" })
// completely removes previous iframe from container and generates a new one
frame.setHTML({ body: "bye" })options
you can pass this into the constructor or setHTML
{
name: name of the iframe,
src: if src url is passed in use that (this mode ignores body/head/html options),
body: string contents for `<body>`
head: string contents for `<head>`
html: string contents for entire iframe
container: (constructor only) dom element to append iframe to, default = document.body
sandboxAttributes: array of capability flag strings, default = ['allow-scripts']
scrollingDisabled: (constructor only) boolean for the iframe scrolling attr
}you can also just pass in a string and it will be used as {html: 'yourstring'}
security
by default the sandbox attribute is set with 'allow-scripts' enabled. pass in an array of capability flag strings. Available flags:
allow-forms allows form submission.
allow-popups allows (shock!) popups.
allow-pointer-lock allows (surprise!) pointer lock.
allow-same-origin allows the document to maintain its origin; pages loaded from https://example.com/ will retain access to that origin’s data.
allow-scripts allows JavaScript execution, and also allows features to trigger automatically (as they’d be trivial to implement via JavaScript).
allow-top-navigation allows the document to break out of the frame by navigating the top-level window.gotchas
iframes are weird. here are some things I use to fix weirdness:
loading javascript into iframes
// setTimeout is because iframes report inaccurate window.innerWidth/innerHeight, even after DOMContentLoaded!
var body = '<script type="text/javascript"> setTimeout(function(){' + javascriptCodeHere + '}, 0)</script>'getting rid of dumb iframe default styles
var head = "<style type='text/css'> html, body { margin: 0; padding: 0; border: 0; } </style>"license
BSD