diff --git a/src/dom/common/dom-view.tsx b/src/dom/common/dom-view.tsx
index a9a44a0c..fcdf5ae4 100644
--- a/src/dom/common/dom-view.tsx
+++ b/src/dom/common/dom-view.tsx
@@ -126,16 +126,16 @@ abstract class DOMView<State extends DOMViewState, Data> {
 	}
 
 	protected _getCSP(): string {
-		let baseURI = this._options.data.baseURI ? new URL(this._options.data.baseURI) : null;
-		// When baseURI is http[s], use the origin
-		// In the client, though, baseURI will be a zotero: URI and its origin will be the string "null"
+		let url = this._options.data.url ? new URL(this._options.data.url) : null;
+		// When url is http[s], use the origin
+		// In the client, though, url will be a zotero: URI and its origin will be the string "null"
 		// for some reason. In that case, just allow the entire protocol. (In practice zotero:// URIs are always
 		// allowed because the protocol is marked as URI_IS_LOCAL_RESOURCE, which exempts it from CSP, but we want
 		// to be safe here.)
 		// https://bugzilla.mozilla.org/show_bug.cgi?id=1551253
-		let origin = baseURI && (baseURI.protocol.startsWith('http') ? baseURI.origin : baseURI.protocol);
+		let origin = url && (url.protocol.startsWith('http') ? url.origin : url.protocol);
 
-		// Allow resources from the same origin as the baseURI
+		// Allow resources from the same origin as the URL
 		let defaultSrc = origin || "'none'";
 		// Allow images from data: and blob: URIs and from that origin
 		let imgSrc = (origin || '') + ' data: blob:';
@@ -1078,7 +1078,7 @@ export type DOMViewOptions<State extends DOMViewState, Data> = {
 	onKeyDown: (event: KeyboardEvent) => void;
 	data: Data & {
 		buf?: Uint8Array,
-		baseURI?: string
+		url?: string
 	};
 };
 
diff --git a/src/dom/epub/epub-view.ts b/src/dom/epub/epub-view.ts
index f2ab120b..4195c3e9 100644
--- a/src/dom/epub/epub-view.ts
+++ b/src/dom/epub/epub-view.ts
@@ -91,8 +91,8 @@ class EPUBView extends DOMView<EPUBViewState, EPUBViewData> {
 			this.book = Epub(options.data.buf.buffer);
 			delete this._options.data.buf;
 		}
-		else if (options.data.baseURI) {
-			this.book = Epub(options.data.baseURI, {
+		else if (options.data.url) {
+			this.book = Epub(options.data.url, {
 				openAs: 'epub'
 			});
 		}
@@ -100,7 +100,7 @@ class EPUBView extends DOMView<EPUBViewState, EPUBViewData> {
 			this.book = options.data.book;
 		}
 		else {
-			throw new Error('buf, baseURI, or book is required');
+			throw new Error('buf, url, or book is required');
 		}
 	}
 
diff --git a/src/dom/snapshot/snapshot-view.ts b/src/dom/snapshot/snapshot-view.ts
index 7d8d9c7c..21eb68fa 100644
--- a/src/dom/snapshot/snapshot-view.ts
+++ b/src/dom/snapshot/snapshot-view.ts
@@ -47,13 +47,13 @@ class SnapshotView extends DOMView<SnapshotViewState, SnapshotViewData> {
 		if (this._options.data.srcDoc) {
 			return this._options.data.srcDoc;
 		}
-		else if (this._options.data.buf || this._options.data.baseURI !== undefined) {
+		else if (this._options.data.buf || this._options.data.url !== undefined) {
 			let buf;
 			if (this._options.data.buf) {
 				buf = this._options.data.buf;
 			}
 			else {
-				buf = await fetch(this._options.data.baseURI!).then(r => r.arrayBuffer());
+				buf = await fetch(this._options.data.url!).then(r => r.arrayBuffer());
 			}
 			let text = new TextDecoder('utf-8').decode(buf);
 			delete this._options.data.buf;
@@ -62,9 +62,9 @@ class SnapshotView extends DOMView<SnapshotViewState, SnapshotViewData> {
 			for (let base of doc.querySelectorAll('base')) {
 				base.remove();
 			}
-			if (this._options.data.baseURI !== undefined) {
+			if (this._options.data.url !== undefined) {
 				let base = doc.createElement('base');
-				base.href = this._options.data.baseURI;
+				base.href = this._options.data.url;
 				doc.head.prepend(base);
 			}
 
@@ -79,14 +79,14 @@ class SnapshotView extends DOMView<SnapshotViewState, SnapshotViewData> {
 			return new XMLSerializer().serializeToString(doc);
 		}
 		else {
-			throw new Error('buf, baseURI, or srcDoc is required');
+			throw new Error('buf, url, or srcDoc is required');
 		}
 	}
 
 	getData() {
 		return {
 			srcDoc: this._iframe.srcdoc,
-			baseURI: this._iframeDocument.head.querySelector('base')?.href
+			url: this._iframeDocument.head.querySelector('base')?.href
 		};
 	}
 
diff --git a/src/index.dev.js b/src/index.dev.js
index ff0d616e..6fa275c5 100644
--- a/src/index.dev.js
+++ b/src/index.dev.js
@@ -30,7 +30,7 @@ async function createReader() {
 		readOnly: false,
 		data: {
 			buf: new Uint8Array(await res.arrayBuffer()),
-			baseURI: new URL('/', window.location).toString()
+			url: new URL('/', window.location).toString()
 		},
 		// rtl: true,
 		annotations: demo.annotations,
diff --git a/src/pdf/pdf-view.js b/src/pdf/pdf-view.js
index e8e41439..d258625e 100644
--- a/src/pdf/pdf-view.js
+++ b/src/pdf/pdf-view.js
@@ -154,7 +154,7 @@ class PDFView {
 				this._iframeWindow.PDFViewerApplication.open({ data: options.data.buf, password: this._password });
 			}
 			else {
-				this._iframeWindow.PDFViewerApplication.open({ url: options.data.baseURI, password: this._password });
+				this._iframeWindow.PDFViewerApplication.open({ url: options.data.url, password: this._password });
 			}
 			window.PDFViewerApplication = this._iframeWindow.PDFViewerApplication;
 			window.if = this._iframeWindow;