The Instant View Editor uses a three-column layout, so you really want to use it on a desktop screen that's wide enough. Sorry for the inconvenience.

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substring-after
The substring-after function returns a string that is the rest of a given string after a given substring.

Issue #2

The pre-formatted/code snippet styling of some elements has been discarded entirely. Seeing code in plain text, or even headings (as it is the case in some of your elements depicted here) can be quite confusing.
Accepted by admin
The table is indeed hard to read. There is no way to identify the content of the table.
Type of issue
IV page is missing essential content
Reported
Jun 19, 2017