From 8da01b382ce43802ef164b86cc7e8c714d85a0f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@lysator.liu.se>
Date: Sat, 11 Jun 2022 23:18:11 +0200
Subject: Follow all instances of tagName with toLowerCase.

A HTML document returns tag names as upper case, while xml documents
return them as lower case (or possibly their original case).
---
 static/components/vevent.ts |  2 +-
 static/globals.ts           |  2 +-
 static/vevent.ts            | 10 +++++-----
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/static/components/vevent.ts b/static/components/vevent.ts
index b72cda90..2193eabc 100644
--- a/static/components/vevent.ts
+++ b/static/components/vevent.ts
@@ -15,7 +15,7 @@ abstract class ComponentVEvent extends HTMLElement {
 
     constructor(uid?: string) {
         super();
-        this.template = document.getElementById(this.tagName) as HTMLTemplateElement | null
+        this.template = document.getElementById(this.tagName.toLowerCase()) as HTMLTemplateElement | null
 
         let real_uid;
 
diff --git a/static/globals.ts b/static/globals.ts
index 2fc12933..ddc9113e 100644
--- a/static/globals.ts
+++ b/static/globals.ts
@@ -51,7 +51,7 @@ function find_block(uid: uid): ComponentBlock | null {
         return null;
     }
     for (let el of obj.registered) {
-        if (el.tagName === 'vevent-block') {
+        if (el.tagName.toLowerCase() === 'vevent-block') {
             return el as ComponentBlock;
         }
     }
diff --git a/static/vevent.ts b/static/vevent.ts
index 56c9019a..5419eb60 100644
--- a/static/vevent.ts
+++ b/static/vevent.ts
@@ -298,7 +298,7 @@ function make_vevent_value(value_tag: Element): VEventValue {
     /* TODO parameters */
     return new VEventValue(
         /* TODO error on invalid type? */
-        value_tag.tagName as ical_type,
+        value_tag.tagName.toLowerCase() as ical_type,
         make_vevent_value_(value_tag));
 }
 
@@ -441,7 +441,7 @@ function xml_to_recurrence_rule(xml: Element): RecurrenceRule {
 
 function make_vevent_value_(value_tag: Element): string | boolean | Date | number | RecurrenceRule {
     /* RFC6321 3.6. */
-    switch (value_tag.tagName) {
+    switch (value_tag.tagName.toLowerCase()) {
         case 'binary':
             /* Base64 to binary
                Seems to handle inline whitespace, which xCal standard reqires
@@ -518,10 +518,10 @@ function xml_to_vcal(xml: Element): VEvent {
             for (var j = 0; j < tag.childElementCount; j++) {
                 let child = tag.childNodes[j];
                 if (!(child instanceof Element)) continue;
-                if (child.tagName == 'parameters') {
+                if (child.tagName.toLowerCase() == 'parameters') {
                     parameters = /* TODO handle parameters */ {};
                     continue value_loop;
-                } else switch (tag.tagName) {
+                } else switch (tag.tagName.toLowerCase()) {
                     /* These can contain multiple value tags, per
                        RFC6321 3.4.1.1. */
                     case 'categories':
@@ -535,7 +535,7 @@ function xml_to_vcal(xml: Element): VEvent {
                         value = make_vevent_value(child);
                 }
             }
-            property_map.set(tag.tagName, value);
+            property_map.set(tag.tagName.toLowerCase(), value);
         }
     }
 
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