fix(pat-inject): Fix problem with inserting table rows. #1238
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There was a problem with injecting table rows introduced in: b0f94fb The problem occured when setting a table row as content of a temporary <div> wrapper. But a <tr> is not a valid child node of a <div>. This caused visually destroyed tables. Using a <template> tag as wrapper instead of a div solved the problem.
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Problem
Daniel reported a problem on signal concerning table-row injections. At one point in the current release cycle I had to add a temporary wrapper element to be able to load a string and treat it as a DOM element so that javascript functions can be used to identify elements.
I used a DIV.
However tr elements cannot be added to divs, therefore the table-row injection failed.
Solution in this Pull Request
A
<tr>can live within a<template>. Changing the temporary div to a template solves the issue.This temporary wrapper never makes it into the page, instead is only needed to transform an HTML string to a DOM node, so that we can do DOM operations, like
querySelectorAllon it. That is used to find all images within the to-be-injected source and attach an event handler on it.After that operation, the tag is discarded again.
Technical note
There was a problem with injecting table rows introduced in: b0f94fb The problem occured when setting a table row as content of a temporary
<div>wrapper. But a<tr>is not a valid child node of a<div>. This caused visually destroyed tables. Using a<template>tag as wrapper instead of a div solved the problem.