[wp-trac] [WordPress Trac] #53529: Block based widget admin screen causes a NS_ERROR_FAILURE error in Firefox

[WordPress Trac]

#53529: Block based widget admin screen causes a NS_ERROR_FAILURE error in Firefox
---------------------------+-----------------------
 Reporter:  walterebert    |       Owner:  (none)
     Type:  defect (bug)   |      Status:  reopened
 Priority:  normal         |   Milestone:  5.8
Component:  Widgets        |     Version:  trunk
 Severity:  normal         |  Resolution:
 Keywords:  needs-testing  |     Focuses:
---------------------------+-----------------------
Changes (by desrosj):

 * status:  closed => reopened
 * resolution:  worksforme =>
 * milestone:   => 5.8


Comment:

 I actually just encountered this testing #53512. It seems to happen when
 an Image widget is added to a sidebar before updating to a WordPress 5.8
 development build.

 I'm only able to reproduce in Firefox.

 I'm going to reopen to investigate further, But it doesn't appear that
 anything is actually broken at first glance. The widget previews all load,
 I'm able to add new widgets, and I'm able to change all of the widgets
 found on the page (including the image widget that appears to cause the
 issue.

 {{{
 Uncaught
 Exception { name: "NS_ERROR_FAILURE", message: "", result: 2147500037,
 filename: "http://localhost:10018/wp-admin/widgets.php?legacy-widget-
 pr…jpg&legacy-widget-preview%5Binstance%5D%5Braw%5D%5Btitle%5D=",
 lineNumber: 17, columnNumber: 0, data: null, stack:
 "t.supports[o[r]]<@http://localhost:10018/wp-admin/widgets.php?legacy-
 widget-preview%5BidBase%5D=media_image&legacy-widget-
 preview%5Binstance%5D%5Bencoded%5D=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%3D
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 nevozhai-1183974-unsplash-1-300x300.jpg&legacy-widget-
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 &legacy-widget-
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 preview%5Binstance%5D%5Braw%5D%5Bheight%5D=2560&legacy-widget-
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 preview%5Binstance%5D%5Braw%5D%5Bcaption%5D=&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Balt%5D=&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Blink_type%5D=custom&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Blink_url%5D=&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Bimage_classes%5D=&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Blink_classes%5D=&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Blink_rel%5D=&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Blink_target_blank%5D=false&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Bimage_title%5D=&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Battachment_id%5D=52&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Burl%5D=http%3A%2F%2Flocalhost%3A10018
 %2Fwp-content%2Fuploads%2F2021%2F06%2Fdenys-
 nevozhai-1183974-unsplash-1-300x300.jpg&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Btitle%5D=:17:1779\n" }
 ​
 columnNumber: 0
 ​
 data: null
 ​
 filename: "http://localhost:10018/wp-admin/widgets.php?legacy-widget-
 pr…jpg&legacy-widget-preview%5Binstance%5D%5Braw%5D%5Btitle%5D="
 ​
 lineNumber: 17
 ​
 message: ""
 ​
 name: "NS_ERROR_FAILURE"
 ​
 result: 2147500037
 ​
 stack: "t.supports[o[r]]<@http://localhost:10018/wp-admin/widgets.php
 ?legacy-widget-preview%5BidBase%5D=media_image&legacy-widget-
 preview%5Binstance%5D%5Bencoded%5D=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%3D
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 nevozhai-1183974-unsplash-1-300x300.jpg&legacy-widget-
 preview%5Binstance%5D%5Braw%5D%5Btitle%5D=:17:1779\n"
 ​
 <prototype>: ExceptionPrototype { toString: toString(), name: Getter,
 message: Getter, … }
 widgets.php:17
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 widget-preview[idBase]=media_image&legacy-widget-
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 }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/53529#comment:7>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform