angular-ui/ui-grid

canvas.toDataURL("image/png") not working in IE

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#6,444 opened on Nov 3, 2017

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 (1 comment) (0 reactions) (0 assignees)JavaScript (5,395 stars) (2,496 forks)batch import
Browser IEhelp wanted

Description

canvas.toDataURL("image/png") works very well on chrome and firefox but for IE it does not work. When canvas.toDataURL("image/png") gets called a Security error gets thrown.

Contributor guide

Tech stack
javascript
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic knowledge of canvas APIUnderstanding of IE browser quirks
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate IE's security restrictions that cause canvas.toDataURL to throw a SecurityError. Check if the canvas is being tainted by cross origin images. Look for existing solutions or workarounds in the repository or linked issues. The issue has no comments indicating a solution, so propose testing with a 'freed' canvas or using a canvas proxy. Check if the issue is still reproducible in modern IE/Edge.