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Refactor the container/viewer checks in the BaseViewer constructor

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The previous checks prevented specifying a container/viewer that was in another
document/window.
Fixes #12385
This commit is contained in:
Jonathan Grimes 2020-09-17 12:47:55 -05:00
parent 558d3870d3
commit d37a445369
1 changed files with 4 additions and 2 deletions
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6
web/base_viewer.js
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@ -150,8 +150,10 @@ class BaseViewer {
) { ) {
if ( if (
!( !(
this.container instanceof HTMLDivElement && this.container &&
this.viewer instanceof HTMLDivElement this.container.tagName.toUpperCase() === "DIV" &&
this.viewer &&
this.viewer.tagName.toUpperCase() === "DIV"
) )
) { ) {
throw new Error("Invalid `container` and/or `viewer` option."); throw new Error("Invalid `container` and/or `viewer` option.");